You Can't Blame Gravity For

We Cannot Despair Of Humanity, Since We Ourselves Are Human Beings.

An Attempt At Visualizing The Fourth Dimension: Take A Point, Stretch It Into A Line, Curl It Into A Circle, Twist It Into A Sphere, And Punch Through The Sphere.

I Have No Extraordinary Ability. I'm Simply An Inquisitive Individual.

Only A Very Dull Man Spells A Word The Same Way Twice.

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