[T]he habit of scientific analysis ... exhausts the material offered to it.

It is dangerous to abandon one's self to the luxury of grief; it deprives one of courage, and even of the wish for recovery.

There is an illusion of central position, justifying one's own purposes as right and everybody else¹s as wrong, and providing a proper degree of paranoia. Righteous ends, thus approved, absolve of guilt the most violent means.

Common sense is calculation applied to life.

The great artist and thinker are the simplifiers.

Before giving advice we must have secured its acceptance, or, rather, have made it desired.

A belief is not true simply because it is useful.