Ulysses, poem about remember our past and to take risks in our future

It may be that the gulfs will wash us down:

It may be we shall touch the Happy Isles,

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.

Alfred Lord Tennyson

Link to full peom