You can do philosophy sitting on your caboose, but you do ethics on your knees.

In the ethical sense, propaganda bears the same relation to education as to business or politics. It may be abused. It may be used to over-advertise an institution and to create in the public mind artificial values. There can be no absolute guarantee against its misuse.

Our scientific powers have outrun our spiritual powers; we have guided missiles and mis-guided men.

You can't say that civilization don't advance, however, for in every war they kill you in a new way.

A man is truly ethical only when he obeys the compulsion to help all life which he is able to assist, and shrinks from injuring anything that lives.

When people go to work, they shouldn't have to leave their hearts at home.