I know it well. He is the founder. As I specified on my profile we studied at the same university at the same time, but in different faculties (engineering him, philosophy me).
Let me recommend the books of Erich Fromm, humanist philosopher and psychoanalyst, an easy but profound author, you will be won over:
The Art of Loving, Have or Be, On the Side of Man, The Heart of Man etc.
I also greatly appreciate the moral and anthropological writings of your great Bertrand Russell.