Travel is a caprice in childhood, a passion in youth, a necessity in manhood, and an elegy in old age.

God has made man a cosmopolite. He created seas for ships to glide on, the wind to push them, and the stars to guide them even in darkest night.

Necessity is the most powerful divinity the world knows--it is the result of physical forces set in operation by ethical forces.

Virtue lies in the middle ground.

I have found it to be true that the older I've become the better my life has become.

Not everyone grows to be old, but everyone has been younger than he is now.

'Time lost is time when we have not lived a full human life, time unenriched by experience, creative endeavor, enjoyment, and suffering.'