If someone feels that he has never made a mistake in his life, it only means that he has never tried anything new in his life.

The greater the doubt, the greater the awakening

Teaching should be such that what is offered is perceived as a valuable gift and not as hard duty. Never regard study as duty but as the enviable opportunity to learn to know the liberating influence of beauty in the realm of the spirit for your own personal joy and to the profit of the community to which your later work belongs.

Science is the process of making obviously erroneous ideas less obviously erroneous.

Live life to the fullest. You have to color outside the lines once in a while if you want to make your life a masterpiece. Laugh some every day. Keep growing, keep dreaming, keep following your heart. The important thing is not to stop questioning.

The trite objects of human efforts-possessions, superficial success, luxury-have always seemed contemptible to me.

Life is a preparation for the future; and the best preparation for the future is to live as if there were none.