For better or worse, man is the tool-using animal, and as such he has become the lord of creation. When he is lord also of himself, he will deserve his self-chosen title homo sapiens.

There is no law of progress. Our future is in our own hands, to make or to mar. It will be an uphill fight to the end, and would we have it otherwise? Let no one suppose that evolution will ever exempt us from struggles. 'You forget,' said the Devil, with a chuckle, 'that I have been evolving too.

The aim of education is the knowledge, not of facts, but of values.

Theater is, of course, a reflection of life. Maybe we have to improve life before we can hope to improve theater.

No Christian can be a pessimist, for Christianity is a system of radical optimism.

Over-population is a phenomenon connected with the survival of the unfit, and it is a mechanism which has created conditions favourable to the survival of the unfit and the elimination of the fit.

My dear, we live in an age of transition.