All nature is but art unknown to thee,
All chance, direction which thou canst not see;
All discord, harmony not understood;
All partial evil, universal good;
And, spite of pride, in erring reason’s spite,
One truth is clear, Whatever is, is right.

Alexander Pope (1688-1744) English poet

“An Essay on Man,” Epistle 1, l. 289ff (1733-34)