A friend to all is a friend to none – Aristotle

Fear is pain arising from the anticipation of evil – Aristotle

The wise man does not expose himself needlessly to danger, since there are few things for which he cares sufficiently; but he is willing, in great crises, to give even his life – knowing that under certain conditions it is not worthwhile to live – 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 – Aristotle

Every art and every inquiry, and similarly every action and choice, is thought to aim at some good; and for this reason the good has rightly been declared to be that at which all things aim – Aristotle

The energy of the mind is the essence of life – Aristotle