The Sincere Alone Can Recognize Sincerity.

Every Man Is My Superior In That I May Learn From Him.

Man Is A Tool-using Animal.

The Three Great Elements Of Modern Civilization, Gun Powder, Printing, And The Protestant Religion.

When We Can Drain The Ocean Into Mill-ponds, And Bottle Up The Force Of Gravity, To Be Sold By Retail, In Gas Jars; Then May We Hope To Comprehend The Infinitudes Of Man's Soul Under Formulas Of Profit And Loss; And Rule Over This Too, As Over A Patent Engine, By Checks, And Valves, And Balances.

Time Has Only A Relative Existence.