Be kind, for everyone you meet is fighting a hard battle.
The most important discoveries will provide answers to questions that we do not yet know how to ask and will concern objects we have not yet imagined.
Extraordinary things are always hiding in places people never think to look.
Life cannot be classified in terms of a simple neurological ladder, with human beings at the top; it is more accurate to talk of different forms of intelligence, each with its strengths and weaknesses. This point was well demonstrated in the minutes before last December’s  tsunami, when tourists grabbed their digital cameras and ran after the ebbing surf, and all the “dumb” animals made for the hills.
It is not action or effort that we must surrender; it is self-will, and this is terribly difficult. You must do your best constantly, yet never allow yourself to become involved in whether things work out the way you want.
It does not require many words to speak the truth.
A discovery is said to be an accident meeting a prepared mind.
The satiated man and the hungry one do not see the same thing when they look upon a loaf of bread.
I love you, and because I love you, I would sooner have you hate me for telling you the truth than adore me for telling you lies.
Success is not final; failure is not fatal. It is the courage to continue that counts.