It is our duty as men and women to proceed as though the limits of our abilities do not exist. – Pierre Teilhard de Chardin

A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself. – John Stuart Mill

Without feelings of respect, what is there to distinguish men from beasts? – Confucius