We Must Learn Our Limits. We Are

Some Vices Only Lay Hold Of Us By Means Of Others, And These, Like Branches, Fall On Removal Of The Trunk.

Justice Without Force Is Powerless; Force Without Justice Is Tyrannical.

Since We Cannot Know All That There Is To Be Known About Anything, We Ought To Know A Little About Everything.

The Entire Ocean Is Affected By A Single Pebble.

I Have Spent Much Time In The Study Of The Abstract Sciences; But The Paucity Of Persons With Whom You Can Communicate On Such Subjects Disgusted Me With Them. When I Began To Study Man, I Saw That These Abstract Sciences Are Not Suited To Him, And That In Diving Into Them, I Wandered Farther From My Real Object Than Those Who Knew Them Not, And I Forgave Them For Not Having Attended To These Things. I Expected Then, However, That I Should Find Some Companions In The Study Of Man, Since It Was So Specifically A Duty. I Was In Error. There Are Fewer Students Of Man Than Of Geometry.