"At a turbulent public meeting once I lost my temper and said some harsh and sarcastic things. The proposal I was supporting was promptly defeated. My father who was there, said nothing, but that night, on my pillow I found a marked passage from Aristotle: Anybody can become angry--that is easy, but to be angry with the right person and to the right degree and at the right time and for the right purpose, and in the right way -- that is not within everybody's power and is not easy."