When young, one is confident to be able to build palaces for mankind, but when the time comes one has one's hands full just to be able to remove their trash.
One always has time enough, if one will apply it well.
I do not know myself, and God forbid that I should.
Unrest and uncertainty are our lot.
You must be either the servant or the master, the hammer or the anvil.
Those who know nothing of foreign languages know nothing of their own.