It is beyond any man’s wisdom to judge the secret heart of another,” he said, “for in it are good and evil mixed. - Lloyd Alexander

It is strange,' he said at last. 'I had longed to enter the world of men. Now I see it filled with sorrow, with cruelty and treachery, with those who would destroy all around them.'
'Yet, enter it you must,' Gwydion answered, 'for it is a destiny laid on each of us. True, you have seen these things. But there are equal parts of love and joy.

It is easy to judge evil unmixed," replied Gwydion. "But, alas, in most of us good and bad are closely woven as the threads on a loom; greater wisdom than mine is needed for the judging.

Had I done it sooner, perhaps he might have lived. He was a man of courage and good heart, a proud man. Now he is dead. I saved the signal to use in a worthy cause, and when I found one it was wasted.”

“Wasted?” answered Fflewddur. “I think not. Since you did your best and didn’t begrudge using it, I shouldn’t call it wasted at all.