If One Doesn't Know One's Own Country,

Gray Is The Color Of All Theory

The Philosophers Must Station Themselves In The Middle.

If Any Man Wish To Write In A Clear Style, Let Him Be First Clear In His Thoughts; And If Any Would Write In A Noble Style, Let Him First Possess A Noble Soul.

Once You Have Missed The First Buttonhole, You'll Never Manage To Button Up.

Science Has Been Seriously Retarded By The Study Of What Is Not Worth Knowing And Of What Is Not Knowable.