I am strongly of the opinion that, after the age of...

I am strongly of the opinion that, after the age of twenty-one, a man ought not to be out of bed and awake at four in the morning. The hour breeds thought. At twenty-one, life being all future, it may be examined with impunity. But, at thirty, having become an uncomfortable mixture of future and past, it is a thing to be looked at only when the sun is high and the world full of warmth and optimism.