I am done with great things And big things, great institutions And big success, and I am for those Tiny invisible molecular moral Forces that work from individual To individual, creeping through The crannies of the world like So many rootlets, or like the Capillary oozing of water, Yet which, if you give them Time Will rend the hardest monuments Of our pride.
~ from THE LETTERS OF WILLIAM JAMES by William James
Do not be daunted by the enormity of the world's grief. Do justly, now. Love mercy, now. Walk humbly, now. You are not obligated to complete the work, but neither are you free to abandon it.