To have the sense of creative activity is the great happiness and the great proof of being alive.

Could a government dare to set out with happiness as its goal? Now that there are accepted scientific proofs it would be easy to audit the progress of national happiness annually just as we monitor money and GDP.

Achievement of your happiness is the only moral purpose of your life and that happiness not pain or mindless self-indulgence is the proof of your moral integrity since it is the proof and the result of your loyalty to the achievement of your values.

No sadder proof can be given by a man of his own littleness than disbelief in great men.

The great proof of madness is the disproportion of one's designs to one's means.

That some achieve great success is proof to all that others can achieve it as well.

The fact that political ideologies are tangible realities is not a proof of their vitally necessary character. The bubonic plague was an extraordinarily powerful social reality but no one would have regarded it as vitally necessary.

The chief contribution of Protestantism to human thought is its massive proof that God is a bore.

That God cannot lie is no advantage to your argument because it is no proof that priests can not or that the Bible does not.

The world sees in our conduct in our behaviour the proof that we are the real children of God.