He Lives Well Who Is Well Hidden.

With Me, Everything Turns Into Mathematics.

The Greatest Minds Are Capable Of The Greatest Vices As Well As Of The Greatest Virtues.

I Was Convinced That Our Beliefs Are Based Much More On Custom And Example Than On Any Certain Knowledge.

Let Whoever Can Do So Deceive Me, He Will Never Bring It About That I Am Nothing, So Long As I Continue To Think I Am Something.

I Should Consider That I Know Nothing About Physics If I Were Able To Explain Only How Things Might Be, And Were Unable To Demonstrate That They Could Not Be Otherwise.