A doubtful friend is worse than a certain enemy. Let a man be one thing or the other, and we then know how to meet him.

A liar will not be believed even when he speaks the truth.

Betray a friend, and you'll often find you have ruined yourself.

After all is said and done, more is said than done.

Necessity is the mother of invention.

The injury we do and the one we suffer are not weighed in the same scales.

It’s what you practice in private that you’ll be rewarded for in public.

Don't feel sorry for yourself. Only assholes do that.

All animals except man know that the principal business of life is to enjoy it.

I have never advocated war except as a means of peace.

I am as bad as the worst, but, thank God, I am as good as the best.

Live this day as if it were your last. The past is over and gone.The future is not guaranteed.

I love deadlines. I love the whooshing noise they make as they go by.

Sometimes it is better to lose and do the right thing than to win and do the wrong thing.

Cherish your human connections - your relationships with friends and family.