• If I have seen further than others, it is by standing upon the shoulders of giants.

  • Happiness is a direction, not a place.

  • Keep your face to the sunshine and you cannot see a shadow.

  • We may give without loving, but we cannot love without giving.

  • Real knowledge is to know the extent of one’s ignorance.

  • Only those who will risk going too far can possibly find out how far one can go.

  • The true sign of intelligence is not knowledge but imagination.

  • If you do not change direction, you may end up where you are heading.

  • You cannot escape the responsibility of tomorrow by evading it today.

  • We know what we are, but know not what we may be.