This Is Enough. Do Not

The Stone That Is Thrown Into The Air Is None The Worse For Falling Down, And None The Better For Going Up.

Do Not Think That What Is Hard For You To Master Is Humanly Impossible; But If A Thing Is Humanly Possible, Consider It To Be Within Your Reach.

Without A Purpose, Nothing Should Be Done.

Men Seek Out Retreats For Themselves In The Country, By The Seaside, On The Moutains . . . But All This Is Unphilosophical To The Last Degree . . . When Thou Canst At A Moment's Notice Retire Into Thyself.

Observe Always That Everything Is The Result Of A Change, And Get Used To Thinking That There Is Nothing Nature Loves So Well As To Change Existing Forms And To Make New Ones Like Them.