From the very fountain of enchantment there arises a taste of bitterness to spread anguish amongst the flowers.

[N]ature repairs one thing from another and allows nothing to be born without the aid of another's death.

Fear 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.

From the heart of this fountain of delights wells up some bitter taste to choke them even amid the flowers.

In the midst of the fountain of wit there arises something bitter, which stings in the very flowers.

All things obey fixed laws.

One Man's food is another Man's Poison