We can't command our love, but we can our actions.

A wondrous subtle thing is love, for here were we two, who had never seen each other before that day, between whom no word or even look of affection had ever passed, and yet now in an hour of trouble our hands instinctively sought for each other… So we stood hand in hand like two children, and there was peace in our hearts for all the dark things that surrounded us.

I have never loved, Watson, but if I did and if the woman I loved had met such an end, I might act even as our lawless lion-hunter has done.

Of all ghosts the ghosts of our old loves are the worst.

Our ideas must be as broad as Nature if they are to interpret Nature.

From the first day I met her, she was the only woman to me. Every day of that voyage I loved her more, and many a time since have I kneeled down in the darkness of the night watch and kissed the deck of that ship because I knew her dear feet had trod it. She was never engaged to me. She treated me as fairly as ever a woman treated a man. I have no complaint to make. It was all love on my side, and all good comradeship and friendship on hers. When we parted she was a free woman, but I could never again be a free man.