Secrecy is the beginning of tyranny

Theology is never any help; it is searching in a dark cellar at midnight for a black cat that isn't there. Theologians can persuade themselves of anything.

Age does not bring wisdom... but it does give perspective... and the saddest sight of all is to see, far behind you, temptations you've resisted.

Hit it! You have to hit it harder than that. Electrons are timid little things but notional; you have to let them know who’s boss.

Specialization is for insects... The race of man? He's a whole other creature.

A prude is a person who thinks that his own rules of propriety are natural laws.

Do-gooding is like treating hemophilia - the real cure is to let hemophiliacs bleed to death...before they breed more hemophiliacs.