For Me, My Thoughts Are My Prostitutes.

Isn't It Better To Have Men Being Ungrateful Than To Miss A Chance To Do Good?

Those Authors Into Whose Hands Nature Has Placed A Magic Wand, With Which They No Sooner Touch Us Than We Forget The Unhappiness In Life, Than The Darkness Leaves Our Soul, And We Are Reconciled To Existence, Should Be Placed Among The Benefactors Of The Human Race.

A Thing Is Not Proved Because No One Has Ever Questioned It... Skepticism Is The First Step Toward Truth.

The Philosopher Forms His Principles On An Infinity Of Particular Observations. He Does Not Confuse Truth With Plausibility, He Takes For Truth What Is True, For False What Is False, For Doubtful What Is Doubtful, And Probable What Is Probable. The Philosophical Spirit Is Thus A Spirit Of Observation And Accuracy.

What Is This World? A Complex Whole, Subject To Endless Revolutions. All These Revolutions Show A Continual Tendency To Destruction; A Swift Succession Of Beings Who Follow One Another, Press Forward, And Vanish; A Fleeting Symmetry; The Order Of A Moment. I Reproached You Just Now With Estimating The Perfection Of Things By Your Own Capacity; And I Might Accuse You Here Of Measuring Its Duration By The Length Of Your Own Days.