Whether Or Not You Can Observe A

As Long As There Will Be A Man, There Will Be Wars.

There Are Few Enough People With Sufficient Independence To See The Weaknesses And Follies Of Their Contemporaries And Remain Themselves Untouched By Them.

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 Have Remained A Simple Fellow Who Asks Nothing Of The World; Only My Youth Is Gone - The Enchanting Youth That Forever Walks On Air.

When A Blind Beetle Crawls Over The Surface Of A Globe He Doesn't Notice That The Track He Has Covered Is Curved. I Was Lucky Enough To Have Spotted It.