There is nothing that exists so great or marvelous that over time mankind does not admire it less and less.

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.

No single thing abides; but all things flow. Fragment to fragment clings - the things thus grow Until we know them and name them. By degrees They melt, and are no more the things we know.

There is no place in nature for extinction.

One thing is made of another, and nature allows no new creation except at the price of death.

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.

And life is given to none freehold, but it is leasehold for all.