There is more stupidity than hydrogen in the universe, and it has a longer shelf life. (Frank Zappa)

Only two things are infinite, the universe and human stupidity, and I’m not sure about the former. (Albert Einstein)

An inconvenience is only an adventure wrongly considered; an adventure is an inconvenience rightly considered. (Gilbert Keith Chesterton)

Be nice to people on your way up because you meet them on your way down. (Jimmy Durante)

You may not be interested in war, but war is interested in you. (Leon Trotsky)