The World Is Neither Wise Nor Just,

To Quarrel With The Uncertainty That Besets Us In Intellectual Affairs Would Be About As Reasonable As To Object To Live One's Life With Due Thought For The Morrow Because No Man Can Be Sure He Will Alive An Hour Hence.

There Is No Alleviation For The Sufferings Of Mankind Except Veracity Of Thought And Of Action, And The Resolute Facing Of The World As It Is When The Garment Of Make-believe By Which Pious Hands Have Hidden Its Uglier Features Is Stripped Off.

And When You Cannot Prove That People Are Wrong, But Only That They Are Absurd, The Best Course Is To Let Them Alone.

Oh Devil! Truth Is Better Than Much Profit. I Have Searched Over The Grounds Of My Belief, And If Wife And Child And Name And Fame Were All To Be Lost To Me One After The Other As The Penalty, Still I Will Not Lie.

Any One Who Has Studied The History Of Science Knows That Almost Every Great Step Therein Has Been Made By The "anticipation Of Nature," That Is, By The Invention Of Hypotheses, Which, Though Verifiable, Often Had Very Little Foundation To Start With; And, Not Unfrequently, In Spite Of A Long Career Of Usefulness, Turned Out To Be Wholly Erroneous In The Long Run.