There is a terrible truthfulness about photography that sometimes makes a thing look ridiculous.

What is wrong with priests and popes is that instead of being apostles and saints, they are nothing but empirics who say I know instead of I am learning, and pray for credulity and inertia as wise men pray for skepticism and activity.

Nothing is more dangerous than a poor doctor: not even a poor employer or a poor landlord.

Science becomes dangerous only when it imagines that it has reached its goal.

I am giving you examples of the fact that this creature man, who in his own selfish affairs is a coward to the backbone, will fight for an idea like a hero. . . . I tell you, gentlemen, if you can shew a man a piece of what he now calls God's work to do, and what he will later call by many new names, you can make him entirely reckless of the consequences to himself personally.

Find enough clever things to say, and you're a Prime Minister; write them down and you're a Shakespeare.

Fashions, after all, are only induced epidemics.