One Lives One's Life Under

Ninety Nine Failed Solutions Equals A Gain Of 99 Pieces Of Information.

Common Sense Is The Collection Of Prejudices Acquired By Age Eighteen.

A Person Starts To Live When He Can Live Outside Himself.

The Gravity Is The First Thing Which You Don't Think

Knowledge Exists In Two Forms - Lifeless, Stored In Books, And Alive, In The Consciousness Of Men. The Second Form Of Existence Is After All The Essential One; The First, Indispensable As It May Be, Occupies Only An Inferior Position.