And e’en in this great throe of pain called Life
I find a rapture linked with each despair,
Well worth the price of anguish. I detect
More good than evil in humanity.
Love lights more fires than hate extinguishes,
And men grow better as the world grows old.

Ella Wheeler Wilcox (1850-1919) American author and poet.

“Optimism,” ll. 9-14, Poems of Pleasure (1888)
    (Source)