Only a fool expects to be happy all the time.

A fool is like the big drum that beats fast but does not realize its hollowness

Happiness is always a by-product. It is probably a matter of temperament, and for anything I know it may be glandular. But it is not something that can be demanded from life, and if you are not happy you had better stop worrying about it and see what treasures you can pluck from your own brand of unhappiness.

Only a fool is astonished by the foolishness of mankind.

Every man is a fool in some man's opinion

Before she continued her search she sat in his revolving desk chair, and wept for the passing of time, and the necessary death of the well-loved, wise old man.