For what human ill does not dawn seem to be an alleviation? - Thornton Wilder

Yes, now you know. Now you know! That’s what it was to be alive. To move about in a cloud of ignorance; to go up and down trampling on the feelings of those . . . of those about you. To spend and waste time as though you had a million years. To be always at the mercy of one self-centered passion, or another. Now you know — that’s the happy existence you wanted to go back to. Ignorance and blindness.

Next she lost her belief in the sincerity of those about her. She secretly refused to believe that anyone (herself excepted) loved anyone. All families lived in a wasteful atmosphere of custom and kissed one another with secret indifference. She saw that the people of this world moved about in an armour of egotism, drunk with self-gazing, athirst for compliments, hearing little of what was said to them, unmoved by the accidents that befell their closest friends, in dread of all appeals that might interrupt their long communion with their own desires.

You've got to love life to have life, and you've got to have life to love life.