“Excellent . . . Outstanding for its breadth of research, the liveliness of the writing, and the depth of humanity it conveys.” –Wall Street Journal

“Sapolsky’s decades of experience studying the effects of the interplay of genes and the environment on behavior shine brightly . . . He provides compelling examples that bad luck compounds . . . convincingly argues against claims that chaos theory, emergent phenomena, or the indeterminism offered by quantum mechanics provide the gap required for free will to exist.” —Science

“The behavioural scientist engagingly lays out the reasons why our every action is predetermined—and why we shouldn’t despair about it . . . Determined is a bravura performance, well worth reading for the pleasure of Sapolsky’s deeply informed company . . . Absorbing and compassionate.” —The Guardian

“Few people understand the human brain as well as renowned neuroscientist Robert Sapolsky.” —San Francisco Chronicle

“Witty and engaging, Determined is also a goldmine of fascinating information (most of it accessible even to those of us who aren’t scientifically literate) about neuroscience; philosophy; chaos theory; emergent complexity; quantum indeterminacy; evolving knowledge of the causes of epilepsy, schizophrenia, and autism; and, of course, the impact of nature and nurture on decision-making.” —Psychology Today

“Determined is a sustained attempt at demonstrating that the decisions we make every day are products of complex factors of which we’re not in charge . . . This is an amiable, surprisingly accessible and at times a persuasive book—a paean to empathy and tolerance that yearns for a world in which societies eventually realize that retribution is futile and wrong . . . [Sapolsky] can be pleased with the knowledge that what he’s written is stimulating to read, even for those who doubt his conclusions.” —San Francisco Chronicle

“Sapolsky presents in his inimitable style a cogent argument explaining that free will is an illusion . . . Sapolsky tackles many complicated facets of this demanding subject with aplomb, making difficult material accessible. His engaging style and silly humor make learning fun . . . The debate is essential.” —Booklist

“A neuroscientific takedown of the notion that free will guides us . . . [Sapolsky] is fearless in taking on a matter that is fraught with a long history of debate and division, and he covers a wide variety of disciplines, from philosophy to ethics and law, with admirable clarity . . . Sure to stir controversy, which, to judge by this long but lucid exposition, the author is perfectly willing to court.” —Kirkus (starred review)