Religion has not civilized man, man has civilized religion.

If, with all the time at my disposal, with all the wealth of the resources of this vast universe, to do with as I will, I could not produce a better scheme of life than now prevails, I would be ashamed of my efforts and consider my work a humiliating failure.

My heart was filled with gratitude, with thankfulness, and went out in love to all the heroes, the thinkers who gave their lives for the liberty of hand and brain... to all the wise, the good, the brave of every land, whose thoughts and deeds have given freedom to the sons of men. And then I vowed to grasp the torch that they had held, and hold it high, that light might conquer darkness still.

The few took advantage of the ignorant many. They pretended to have received messages from the Unknown. They stood between the helpless multitude and the gods. They were the carriers of flags of truce. At the court of heaven they presented the cause of man, and upon the labor of the deceived they lived.

He who treats his friends and enemies alike, has neither love nor justice.

Superstition is, always has been, and forever will be, the foe of progress, the enemy of education and the assassin of freedom.

I would rather smoke one cigar than hear two sermons.