Rejoice with your family in the beautiful land of life.

Once we accept our limits, we go beyond them.

I have reached the conviction that the abolition of the death penalty is desirable. Reasons: 1) Irreparability in the event of an error of justice, 2) Detrimental moral influence of the execution procedure on those who, whether directly or indirectly, have to do with the procedure.

I was sitting in a chair in the patent office at Bern when all of a sudden a thought occurred to me: "If a person falls freely he will not feel his own weight." I was startled. This simple thought made a deep impression on me. It impelled me toward a theory of gravitation.

Never do anything against conscience even if the state demands it.

Life is like riding a bicycle. If you want to stay balanced you've got to keep moving forward.

The important thing is to never stop questioning. Never lose a holy curiosity.