Don't waste your life in doubts and fears: spend yourself on the work before you, well assured that the right performance of this hour's duties will be the best preparation for the hours or ages that follow it.
Ralph Waldo Emerson
No longer forward nor behind
I look in hope and fear;
But grateful take the good I find,
The best of now and here.
John G. Whittier
Let us be of good cheer, remembering that the misfortunes hardest to bear are those that never happen.
James Russel Lowell
Live in each season as it passes; breathe the air, drink the drink, taste the fruit, and resign yourself to the influences of each.
Henry David Thoreau