Have you something to do to-morrow; do it to-day.

Neglect kills injuries, revenge increases them.

Be in general virtuous, and you will be happy.

Chess is so interesting in itself, as not to need the view of gain to induce engaging in it; and thence it is never played for money

Historians relate not so much what is done as what they would have believed.

I am a mortal enemy to arbitrary government and unlimited power.

All highly competent people continually search for ways to keep learning, growing, and improving. They do that by asking WHY. After all, the person who knows HOW will always have a job, but the person who knows WHY will always be the boss.