I have a wish. It as a fear as well - that in my end will be my beginning.

Whenever death may surprise us, let it be welcome if our battle cry has reached even one receptive ear and another hand reaches out to take up our arms.

The true revolutionary is guided by a great feeling of love. It is impossible to think of a genuine revolutionary lacking this quality.

Passion is needed for any great work, and for the revolution, passion and audacity are required in big doses.

Study hard so that you can master technology, which allows us to master nature.

The only passion that guides me is for the truth... I look at everything from this point of view.

Remember that the revolution is what is important, and each one of us, alone, is worth nothing.

I had a project for my life which involved 10 years of wandering, then some years of medical studies and, if any time was left, the great adventure of physics.