George Bernard Shaw, Misalliance

"The secret of being miserable is to have leisure to bother about whether you are happy or not. The cure for it is occupation, because occupation means pre-occupation; and the pre-occupied person is neither happy nor unhappy, but simply alive and active. That is why it is necessary to happiness that one should be tired."

"What is the matter with universities is that the students are school children, whereas it is of the very essence of university education that they should be adults."