Science Is Practical Philosophy.

The Two Operations Of Our Understanding, Intuition And Deduction, On Which Alone We Have Said We Must Rely In The Acquisition Of Knowledge.

These Long Chains Of Perfectly Simple And Easy Reasonings By Means Of Which Geometers Are Accustomed To Carry Out Their Most Difficult Demonstrations Had Led Me To Fancy That Everything That Can Fall Under Human Knowledge Forms A Similar Sequence; And That So Long As We Avoid Accepting As True What Is Not So, And Always Preserve The Right Order Of Deduction Of One Thing From Another, There Can Be Nothing Too Remote To Be Reached In The End, Or To Well Hidden To Be Discovered.

Your Joy Is Your Sorrow Unmasked. And The Self-same Well From Which Your Laughter Rises Was Often-times Filled With Your Tears.

He Lives Well Who Is Well Hidden.

A Person Has Two Passions For Love And Abhorrence. A Big Disposition To Excessiveness Has Just A Love, Because It Is More Ardent And Stronger.