Philosophy

Philosophy always sits awkwardly in a collection of quotations: systems do not compress into a sentence, and that is exactly what is asked of them. Kant's ethics or Nietzsche's critique of morality do not fit into a single line without loss. What survives is the phrasing — often brilliant, but lifted out of the context that gave it weight.

So this theme is best read as a pointer rather than a summary. A line that stops you is usually the tip of something larger, and the best thing to do with it is find where it came from. For most authors here the source is available and readable: Marcus Aurelius, Seneca and Epictetus wrote briefly and without jargon, which is why their work has stayed in print for centuries.