One Should Always Have One's Boots On

To Philosophize Is To Doubt.

I Would Have Every Man Write What He Knows And No More.

Take Care That Old Age Does Not Wrinkle Your Spirit Even More Than Your Face.

It Is Far More Probable That Our Senses Should Deceive Us, Than That An Old Woman Should Be Carried Up A Chimney On A Broom Stick; And That It Is Far Less Astonishing That Witnesses Should Lie, Than That Witches Should Perform The Acts That Were Alleged.

Every Period Of Life Has Its Peculiar Prejudices; Whoever Saw Old Age, That Did Not Applaud The Past, And Condemn The Present Times?