He who bears the brand of Cain shall rule the earth.

What's the use of money if you have to earn it.

Both optimists and pessimists contribute to society. The optimist invents the aeroplane, the pessimist the parachute.

When a man says money can do anything, that settles it: he hasn't got any.

Eternal is the fact that the human creature born in Ireland and brought up in its air is Irish. I have lived for twenty years in Ireland and for seventy-two in England; but the twenty came first and in Britain I am still a foreigner and shall die one.

When you read a biography remember that the truth is never fit for publication.

In order to fully realize how bad a popular play can be, it is necessary to see it twice.