Equilibrium searches for that point where there is a balance, even as the poems display a consciousness and self-awareness that belie that balance. The poems negotiate the colossal movement of hearts figuring and being figured by history.

This international bestseller and “intellectual tour de force” (The Montreal Gazette) is both an attack on our weakness for ideologies and a manual for humanist action.

In 1972 Stephen Jay Gould took the scientific world by storm with his paper on punctuated equilibrium. Challenging a core assumption of Darwin's theory of evolution, it launched the controversial idea that the majority of species originates in geological moments (punctuations) and persists in stasis. Now, thirty-five years later, Punctuated Equilibrium offers his only book-length testament on a theory he fiercely promoted, repeatedly refined, and tirelessly defended.

An amazing debut! --Lisa Verge Higgins In the year since her husband died, Laura Klein's world has shifted on its axis. It's not just that she's raising two children alone--fact is, Laura always did the parenting for both of them. But now her fifteen-year-old daughter, Darcy, is dating a boy with a fast car and faster hands, and thirteen-year-old Troy's attitude has plummeted along with his voice. Just when she's resigning herself to a life of worry and selfless support, her charismatic new tenant offers what Laura least expects: a second chance. Darcy isn't surprised her mom doesn't understand her, though she never imagined her suddenly acting like a love-struck teen herself. With Troy starting to show signs of their father's bipolar disorder, and her best friend increasingly secretive, Darcy turns to her new boyfriend, Nick, for support. Yet Nick has a troubled side of his own, forcing Darcy toward life-altering choices. Exploring the effects of grief on both mother and daughter, Equilibrium is a thoughtful, resolutely uplifting novel about finding the balance between holding on and letting go, between knowing when to mourn and when to hope, and between the love we seek and the love we choose to give. "Equilibrium is an emotional, complex, and deeply satisfying novel about the power of hope, love, and family. I couldn't put it down!" --Lisa Verge Higgins, author of One Good Friend Deserves Another "Tender, heartbreaking and beautifully realistic. Fans of Anita Shreve will be riveted by this intense and compassionate story." --Hank Phillippi Ryan, Agatha, Anthony and Macavity-winning author

John Ralston Saul explains how our different qualities give us the intelligence, self-confidence and practical ability to think and act as responsible individuals. He argues, however, that when certain human qualities are worshipped in isolation they become weaknesses, even forces of destruction or self-destruction. In short, they become ideologies. How can we use our qualities as positive forces in our own lives - and the life of our society? How can we use them so that each builds upon the other to reinforce us as humans? Saul's answer is Balance. On Equilibrium is an intelligent, persuasive and controversial exploration of the essential qualities of humanity and how they can be used to achieve equilibrium for the self and to foster an ethical society. It is at once an attack on our weakness for ideologies and a manual for humanist action. It is the logical, compelling and humane successor to Saul's bestselling trilogy Voltaire's Bastards, The Doubter's Companion and The Unconscious Civilisation.

The remarkable story and personalities behind one of the most important theories in modern economics Finding Equilibrium explores the post–World War II transformation of economics by constructing a history of the proof of its central dogma—that a competitive market economy may possess a set of equilibrium prices. The model economy for which the theorem could be proved was mapped out in 1954 by Kenneth Arrow and Gerard Debreu collaboratively, and by Lionel McKenzie separately, and would become widely known as the "Arrow-Debreu Model." While Arrow and Debreu would later go on to win separate Nobel prizes in economics, McKenzie would never receive it. Till Düppe and E. Roy Weintraub explore the lives and work of these economists and the issues of scientific credit against the extraordinary backdrop of overlapping research communities and an economics discipline that was shifting dramatically to mathematical modes of expression. Based on recently opened archives, Finding Equilibrium shows the complex interplay between each man's personal life and work, and examines compelling ideas about scientific credit, publication, regard for different research institutions, and the awarding of Nobel prizes. Instead of asking whether recognition was rightly or wrongly given, and who were the heroes or villains, the book considers attitudes toward intellectual credit and strategies to gain it vis-à-vis the communities that grant it. Telling the story behind the proof of the central theorem in economics, Finding Equilibrium sheds light on the changing nature of the scientific community and the critical connections between the personal and public rewards of scientific work.

Traditionally, the teaching of phase equilibria emphasizes the relationships between the thermodynamic variables of each phase in equilibrium rather than its engineering applications. This book changes the focus from the use of thermodynamics relationships to compute phase equilibria to the design and control of the phase conditions that a process needs. Phase Equilibrium Engineering presents a systematic study and application of phase equilibrium tools to the development of chemical processes. The thermodynamic modeling of mixtures for process development, synthesis, simulation, design and optimization is analyzed. The relation between the mixture molecular properties, the selection of the thermodynamic model and the process technology that could be applied are discussed. A classification of mixtures, separation process, thermodynamic models and technologies is presented to guide the engineer in the world of separation processes. The phase condition required for a given reacting system is studied at subcritical and supercritical conditions. The four cardinal points of phase equilibrium engineering are: the chemical plant or process, the laboratory, the modeling of phase equilibria and the simulator. The harmonization of all these components to obtain a better design or operation is the ultimate goal of phase equilibrium engineering. - Methodologies are discussed using relevant industrial examples - The molecular nature and composition of the process mixture is given a key role in process decisions - Phase equilibrium diagrams are used as a drawing board for process implementation