There Is No Greater Enemy To Those

One Man May Have Some Special Knowledge At First-hand About The Character Of A River Or A Spring, Who Otherwise Knows Only What Everyone Else Knows. Yet To Give Currency To This Shred Of Information, He Will Undertake To Write On The Whole Science Of Physics. From This Fault Many Great Troubles Spring.

Custom Is A Second Nature, And No Less Powerful.

All Other Knowledge Is Hurtful To Him Who Has Not Honesty And Good-nature

The Most Fruitful And Natural Exercise For Our Minds Is, In My Opinion, Conversation.

Have You Been Able To Think Out And Manage Your Own Life? You Have Done The Greatest Task Of All.... All Other Things, Ruling, Hoarding, Building, Are Only Little Appendages And Props, At Most.