Having acknowledged the measure of the good to be pleasure, i.e., beauty, the European upper classes went back in their comprehension of art to the g… - Leo Tolstoy

It was long before I could believe that human learning had no clear answer to this question. For a long time it seemed to me, as I listened to the gravity and seriousness wherewith Science affirmed its positions on matters unconnected with the problem of life, that I must have misunderstood something. For a long time I was timid in the presence in learning, and I fancied that the insufficiency of the answers which I received was not its fault, but was owing to my own gross ignorance, but this thing was not a joke or a pastime with me, but the business of my life, and I was at last forced, willy-nilly, to the conclusion that these questions of mine were the only legitimate questions underlying all knowledge, and that it was not I that was in fault in putting them, but science in pretending to have an answer for them.

Despite the fact that the doctors treated him, bled him, and gave him medicines to drink, he recovered.
[sometimes quoted as "Though the doctors treated him, let his blood, and gave him medications to drink, he nevertheless recovered."]

And those who only know the non-platonic love have no need to talk of tragedy. In such love there can be no sort of tragedy.