"Mankind will never win lasting peace so long as men use their full resources only in tasks of war. While we are yet at peace, let us mobilize the potentialities, particularly the moral and spiritual potentialities, which we usually reserve for war"

This quote by John Foster Dulles speaks to the concept that humanity will never accomplish long lasting peace if we continue to utilize our resources entirely for war. He is suggesting that we ought to use our resources, especially our ethical and spiritual potentialities, to work towards peace while we are still at peace. He is highlighting the importance of utilizing our resources to develop peace instead of to get ready for war. He is suggesting that we need to utilize our resources to develop relationships and foster understanding in between nations, instead of to produce weapons and get ready for fight. He is advocating for a shift in our frame of mind, from among war to one of peace. He is encouraging us to utilize our resources to create a more serene world, instead of to prepare for war. By doing so, we can create an enduring peace that will benefit all of humanity.