The mind like a sick body can be healed and changed by medicine.

If God can do anything he can make a stone so heavy that even he can't lift it. Then there is something God cannot do, he cannot lift the stone. Therefore God does not exist.

Long time men lay oppress'd with slavish fear Religion's tyranny did domineer ... At length a mighty one of Greece began To assert the natural liberty of man, By senseless terrors and vain fancies let To slavery. Straight the conquered phantoms fled.

What can give us more sure knowledge than our senses? How else can we distinguish between the true and the false?

From the heart of the fountain of delight rises a jet of bitterness that tortures us among the very flowers.

It is great wealth to a soul to live frugally with a contented mind.

Assuredly whatsoever things are fabled to exist in deep Acheron, these all exist in this life. There is no wretched Tantalus, fearing the great rock that hangs over him in the air and frozen with vain terror. Rather, it is in this life that fear of the gods oppresses mortals without cause, and the rock they fear is any that chance may bring.