Alfred, Lord Tennyson Quote

It may be that the gulfs will wash us down;
It may be that we shall touch the Happy Isles,
And see the great Achilles, whom we knew.
Though much is taken, much abides; and though
We are not now that strength which in old days
Moved earth and heaven, that which we are, we are —
One equal temper of heroic hearts,
Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield.

l. 63-70. - Ulysses (1842)