(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.

It is pleasurable, when winds disturb the waves of a great sea, to gaze out from land upon the great trials of another.

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.

Even if I knew nothing of the atoms, I would venture to assert on the evidence of the celestial phenomena themselves, supported by many other arguments, that the universe was certainly not created for us by divine power: it is so full of imperfections.

Life is one long struggle in the dark.

...if one thing frightens people, it is that so much happens, on earth and out in space, the reasons for which seem somehow to escape them, and they fill in the gap by putting it down to the gods.

Why shed tears that you must die? For if your past life has been one of enjoyment, and if all your pleasures have not passed through your mind, as through a sieve, and vanished, leaving not a rack behind, why then do you not, like a thankful guest, rise cheerfully from life's feast, and with a quiet mind go take your rest.