The man with toothache thinks everyone happy whose teeth are... - George Bernard Shaw

"Success does not consist in never making mistakes but in never making the same one a second time."

"I’m an atheist and I thank God for it."

"The only way to avoid being miserable is not to have enough leisure to wonder whether you are happy or not."

"A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing."

"Make it a rule never to give a child a book you would not read yourself."