And part of the soil is called to wash away In storms and streams shave close and gnaw the rocks. Besides, whatever the earth feeds and grows Is restored to earth. And since she surely is The womb of all things and their common grave, Earth must dwindle, you see and take on growth again.

So potent was religion in persuading to evil deeds.

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

If atom stocks are inexhaustible, Greater than power of living things to count, If Nature's same creative power were present too To throw the atoms into unions - exactly as united now, Why then confess you must That other worlds exist in other regions of the sky, And different tribes of men, kinds of wild beasts.

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

We notice that the mind grows with the body, and with it decays.

(On the temperature of water in wells) The reason why the water in wells becomes colder in summer is that the earth is then rarefied by the heat, and releases into the air all the heat-particles it happens to have. So, the more the earth is drained of heat, the colder becomes the moisture that is concealed in the ground. On the other hand, when all the earth condenses and contracts and congeals with the cold, then, of course, as it contracts, it squeezes out into the wells whatever heat it holds.