Though I had success in my research both when I was mad and when I was not, eventually I felt that my work would be better respected if I thought and acted like a 'normal' person.

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics, delirium and symptoms of schizophrenia.

I have made the most important discovery of my career, the most important discovery of my life: It is only in the mysterious equations of love that any logic or reasons can be found.

To some extent, people who are insane are nonconformists, and society and their family wish they would live what appear to be useful lives.

Rationality of thought imposes a limit on a person's concept of his relation to the cosmos.

I never saw my grandfather because he had died before I was born, but I have good memories of my grandmother and of how she could play the piano at the old house.

In madness, I thought I was the most important person in the world.