When you once attribute effects to the will of a personal God, you have let in a lot of little gods and evils - then sprites, fairies, dryads, naiads, witches, ghosts and goblins, for your imagination is reeling, riotous, drunk, afloat on the flotsam of superstition. What you know then doesn't count. You just believe, and the more your believe the more do you plume yourself that fear and faith are superior to science and seeing.

All success consists in this: You are doing something for somebody - benefiting humanity - and the feeling of success comes from the consciousness of this.

A form of self-delusion.

Talent does things tolerably well; genius does then intolerably better

To make mistakes is human, but to profit from them is divine.

One can endure sorrow alone, but it takes two to be glad.

Orthodoxy: That peculiar condition where the patient can neither eliminate an old idea nor absorb a new one.