History is always written wrong, and so always needs to be rewritten. ...What is interesting is brought forward as if it had been central and efficacious in the march of events, and harmonies are turned into causes. Kings and generals are endowed with motives appropriate to what the historian values in their actions; plans are imputed to them prophetic of their actual achievements, while the thoughts that really preoccupied them remain buried in absolute oblivion.

The primary use of conversation is to satisfy the impulse to talk.

The love of all-inclusiveness is as dangerous in philosophy as in art.

Intolerance is a form of egotism, and to condemn egotism intolerantly is to share it.

Progress, far from consisting in change, depends on retentiveness. When change is absolute there remains no being to improve and no direction is set for possible improvement: and when experience is not retained, as among savages, infancy is perpetual. Those who cannot remember the past are condemned to repeat it. In the first stage of life the mind is frivolous and easily distracted; it misses progress by failing in consecutiveness and persistence. This is the condition of children and barbarians, in which instinct has learned nothing from experience.

To most people, I fancy, the stars are beautiful; but if you asked why, they would be at a loss to reply, until they remembered what they had heard about astronomy, and the great size and distance and possible habitation of those orbs. ... [We] persuade ourselves that the power of the starry heavens lies in the suggestion of astronomical facts.

The hunger for facile wisdom is the root of all false philosophy.