Bertrand Russell said this quote

In the outworks of our lives, we were almost strangers, but we shared a certain outlook on human life and human destiny, which, from the very first, made a bond of extreme strength . . . . At our very first meeting, we talked with continually increasing intimacy. We seemed to sink through layer after layer of what was superficial, till gradually both reached the central fire. It was an experience unlike any other that I have known. We looked into each other's eyes, half appalled and half intoxicated to find ourselves together in such a region. The emotion was as intense as passionate love, and at the same time all-embracing. I came away bewildered, and hardly able to find my way among ordinary affairs.