Michel de Montaigne

“ A very good proof of this is the great dispute that
has ever been amongst the philosophers, of finding out man's sovereign
good, that continues yet, and will eternally continue, without solution
or accord:
"Dum abest quod avemus, id exsuperare videtur
Caetera; post aliud, quum contigit illud, avemus,
Et sitis aequa tenet."
["While that which we desire is wanting, it seems to surpass all the
rest; then, when we have got it, we want something else; 'tis ever
the same thirst"—Lucretius, iii. 1095.] ”

“ Whatever it is that falls into our knowledge and possession, we find that
it satisfies not, and we still pant after things to come and unknown,
inasmuch as those present do not suffice for us; not that, in my
judgment, they have not in them wherewith to do it, but because we seize
them with an unruly and immoderate haste:
"Nam quum vidit hic, ad victum qux flagitat usus,
Et per quae possent vitam consistere tutam,
Omnia jam ferme mortalibus esse parata ”