It's Not That I'm So Smart.

The Importance Of A Problem Should Not Be Judged By The Number Of Pages Devoted To It.

Don't Listen To The Person Who Has The Answers; Listen To The Person Who Has The Questions.

The Most Practical Solution Is A Good Theory.

The Scientific Theorist Is Not To Be Envied. For Nature, Or More Precisely Experiment, Is An Exorable And Not Very Friendly Judge Of His Work. It Never Says "yes" To A Theory. In The Most Favorable Cases It Says "maybe," And In The Great Majority Of Cases Simply "no." If An Experiment Agrees With A Theory It Means For The Latter "maybe," And If It Does Not Agree It Means "no." Probably Every Theory Will Some Day Experience Its "no" - Most Theories, Soon After Conception.

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