Love Is A Better Teacher Than Duty.

Academic Chairs Are Many, But Wise And Noble Teachers Are Few; Lecture-rooms Are Numerous And Large, But The Number Of Young People Who Genuinely Thirst After Truth And Justice Is Small

Never Memorize Something That You Can Look Up.

Relativity Applies To Physics, Not Ethics.

I Am Satisfied With The Mystery Of The Eternity Of Life.

Problems Cannot Be Solved By Thinking Within The Framework In Which The Problems Were Created.