Every heart that has beat strongly and cheerfully has left a hopeful impulse behind it in the world, and bettered the tradition of mankind.

The spirit, Sir, is one of mockery.

Under the strain of this continually impending doom and by the sleeplessness to which I now condemned myself, ay, even beyond what I had thought possible to man, I became, in my own person, a creature eaten up and emptied by fever, languidly weak both in body and mind, and solely occupied by one thought: the horror of my other self.

It is better to travel hopefully than to arrive.

The greatest engineering is the engineering of men.

Fear is the strong passion; it is with fear that you must trifle, if you wish to taste the intensest joys of living.

I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to move.