“A person who never made a mistake never tried anything new.”

Science without religion is lame, religion without science is blind.

The important thing is not to stop questioning. Curiosity has its own reason for existing.

God does not play dice with the universe.

Few people are capable of expressing with equanimity opinions that differ from the prejudices of their social environment.

Do not worry about your difficulties in mathematics. I can assure you mine are still greater.