He that makes an Ass of himself must not take it ill if Men ride him.

Thomas Fuller, 1732

None is a fool always, everyone sometimes.

George Herbert, 1640

Anybody who feels at ease in the world today is a fool.

Robert Hitchens, 1959

Heh. This is a good one.

There are two kinds of fools: one says, “This is old, therefore it is good”; the other says, “This is new, therefore it is better.”

Dean William Ralph Inge (1860-1954)

A man may be a fool and not know it– but not if he is married.

H.L. Mencken

A fellow who is always declaring he’s no fool usually has his suspicions.

Wilson Mizner (1876-1933)

Puck: Lord, what fools these mortals be!

Shakespeare, 1595

2019 in a nutshell:

Fools are more dangerous than rouges.

George Bernard Shaw, 1928

Again, 2019:

The ultimate affect of shielding men from folly is to fill the world with fools.

Herbert Spencer, 1866

I think I’ll stop there.

All from Quotationary, Leonard Roy Frank, ed., Random House, New York, 2001.