He swallowed a lot of wisdom, but all of it seems to have gone down the wrong way.

Why does a suppurating lung give so little warning and a sore on the finger so much?

Everyone is a genius at least once a year.

To make astute people believe one is what one is not is, in most cases, harder than actually to become what one wishes to appear.

It not seldom happens that in the purposeless rovings and wanderings of the imagination we hunt down such game as can be put to use by our purposeful philosophy in its well-ordered household.

One is rarely an impulsive innovator after the age of sixty, but one can still be a very fine orderly and inventive thinker. One rarely procreates children at that age, but one is all the more skilled at educating those who have already been procreated, and education is procreation of another kind.

We are obliged to regard many of our original minds as crazy at least until we have become as clever as they are.