The proper study of Mankind is Man.
The same ambition can destroy or save, and make a patriot as it makes a knave.
Be sure yourself and your own reach to know How far your genius taste and learning go.
An excuse is worse than a lie, for an excuse is a lie, guarded.
Fools admire but men of sense approve.
The learned is happy, nature to explore; The fool is happy, that he knows no more.