I believe that the experience of love is the most human and humanizing act that it is given to man to enjoy and that it, like reason, makes no sense if conceived in a partial way.
Erich FrommLove is the productive form of relatedness to others and to oneself. It implies responsibility, care, respect. If it isn't productive and respectful, it isn't love, but only fear masquerading as love.
Erich FrommReason is man's faculty for grasping the world by thought, in contradiction to intelligence, which is man's ability to manipulate the world with the help of thought. Reason is man's instrument for arriving at the truth, intelligence is man's instrument for manipulating the world more successfully; the former is essentially human, the latter belongs to the animal part of man.
Erich Fromm