One thing is made of another, and nature allows no new creation except at the price of death.
LucretiusFear in sooth holds so in check all mortals, becasue thay see many operations go on in earth and heaven, the causes of which they can in no way understand, believing them therefore to be done by power divine. for these reasons when we shall have seen that nothing can be produced from nothing, we shall then more correctly ascertain that which we are seeking, both the elements out of which every thing can be produced and the manner in which every thing can be produced in which all things are done without the hands of the gods.
LucretiusCertainly it was no design of the atoms to place themselves in a particular order, nor did they decide what motions each should have. But atoms were struck with blows in many ways and carried along by their own weight from infinite times up to the present.
Lucretius(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.
Lucretius