Revolutionary Ideas: An Intellectual History of the French Revolution from Rights of Man to Robespierre, by Jonathan Israel. Princeton, Princeton University Press, 2014. 870 pp. $39.95 US (cloth). of his massive four-volume series tracing the Enlightenment from Baruch Spinoza through the end of the eighteenth century, Jonathan Israel offers a characteristically ambitious and original interpretation of the French Revolution certain to spark widespread debate. Israel shows little patience for any preceding school of Revolutionary historiography. Social interpretations and the study of broad political cultures, in his view, only enrich the background (p. 10). Francois Furet's intellectual history-based revisionism viewing the Rousseauianism of Robespierre as the Revolution's purest discourse, which dominated the field in recent decades, he declares, needs rejecting just as comprehensively (p. 28). In their place, Israel--building from some revolutionaries' contemporary interpretations and early nineteenth-century histories of the Revolution--looks to interpret the Revolution as the product of la philosophic, which he interprets to mean the Enlightenment he explores in his preceding 2011 volume. Consciously looking for a single dramatic factor (p. 14) to explain the era's radicalism, Israel--albeit with characters shiftily coming and going in his grand narrative--looks to identify a coterie sponsoring a comprehensive series of drastic changes. The Revolution, Israel argues, above all a process of emancipation, democratization, and fundamental renewal on the basis of human rights (p. 12). Of course, the French Revolution was also many other things besides a movement for Enlightenment, but Israel ably traces his cause's influence through the era. Israel begins his Revolution not with the Parlements or local Cahiers de Doleances, but rather with the Committee of Thirty, a coterie of radical pamphleteers operating out of Paris' Palais Royal which would most famously influence the production of member Emmanuel-Joseph Sieyes' What is the Third Estate? Though Israel does not add to the little evidence surviving of the Committee's workings, and the figures involved are not normally described as neither a unified group nor uniformly republican, (p. 35) as Israel calls his protagonists, he sees their influence as predominant. Israel tracks such radical ideas' influence through the early Revolution through their enactment into the Declaration of the Rights of Man and Citizen. Thereafter, Israel takes on the challenge of tracing the role of democratic thinkers and factions in their battles against during the Revolution's first years, and the radical alternative of authoritarian populism (p. 695) he sees Robespierre's faction as embodying. Though not a French Revolutionist by training, Israel gamely approaches Revolutionary debates and infighting--but with an often-excessive polarization matching outlying Revolutionaries' most excessive rhetoric. constitutional monarchism of Revolution's middle years is often neglected in Israel's treatment. Despite virtually all Revolutionaries' desire to end the Revolution and enact a compromise order, Israel remains adamant that so powerful a philosophique republican undercurrent (p. 141) could not remain ignored for long. break with Catholicism is described as wholly certain from the outset, (p. 181) while the push toward the overthrow of the monarchy is primarily attributed to [Jacques-Pierre] Brissot, [the Marquis de] Condorcet and their colleagues (p. 253) in the National Assembly rather than a contingent action of the federe and Parisian popular movements in the final insurrection of August 10, 1792. Israel's culmination of the Radical Enlightenment tendency (p. 348) is the Constitution of February 1793. Curiously, for a movement Israel has traced over a century and a half, he describes its final triumph as one of moderation, which after having vanquished monarchy sought a judicious middle path between the Scylla of direct and the Charybdis of pure representative democracy (p. …