Take care of the minutes and the hours will take care of themselves - Philip Dormer Stanhope

Listen to everything that is said, and see everything that is done. Observe the looks and countenances of those who speak, which is often a surer way of discovering the truth than from what they say. But then keep all those observations to yourself, for your own private use, and rarely communicate them to others. Observe, without being thought an observer, for otherwise people will be upon their guard before you.

Be wiser than other people if you can; but do not tell them so.

The world is a country which nobody ever yet knew by description; one must travel through it one’s self to be acquainted with it.