Smoke like a chimney, work like a horse, eat without thinking, go for a walk only in really pleasant company.

I do not believe that a man should be restrained in his daily actions by being afraid of punishment after death or that he should do things only because in this way he will be rewarded after he dies. This does not make sense. The proper guidance during the life of a man should be the weight that he puts upon ethics and the amount of consideration that he has for others.

The important things are always simple.

Experts are just trained dogs.

I see my life in terms of music.

Time is not at all what it seems. It does not flow in only one direction, and the future exists simultaneously with the past.

This change in the conception of reality is the most profound and the most fruitful that physics has experienced since the time of Newton. Refering to James Clerk Maxwell's contributions to physics.