Genius isn’t a noun; it’s a verb.

— Dan Charnas, Everything in Its Place

Ever since people rebelled against authority in the Enlightenment, and set about using the force of reason to make their lives better, they have found a way to do so, and there is little doubt that they will continue to win victories against the forces of death.

— Angus Deaton, The Great Escape

I scarcely ever knew a city that did not desire the destruction of a neighbouring city, nor a family that did not wish to exterminate some other family. Everywhere the weak execrate the powerful, before whom they cringe; and the powerful beat them like sheep whose wool and flesh they sell. A million regimented assassins, from one extremity of Europe to the other, get their bread by disciplined depredation and murder, for want of more honest employment. Even in those cities which seem to enjoy peace, and where the arts flourish, the inhabitants are devoured by more envy, care, and uneasiness than are experienced by a besieged town. Secret griefs are more cruel than public calamities.

— Voltaire, Candide

Many historians still tend to assume that the spread of an idea or an ideology is a function of its inherent content in relation to some vaguely specified context. We must now acknowledge, however, that some ideas go viral because of structural features of the network through which they spread. They are least likely to do so in a hierarchical, top-down network, where horizontal peer-to-peer links are prohibited.

— Niall Ferguson, The Square and the Tower

Pity makes suffering contagious

— Friedrich Nietzsche, The Antichrist