Pay attention to the things that are critical to your happiness and the happiness of others.

["F]or it's not possible," [Socrates] said, "for anybody to experience a greater evil than hating arguments. Hatred of arguments and hatred of human beings come about in the same way. For hatred of human beings arises from artlessly trusting somebody to excess, and believing that human being to be in every way true and sound and trustworthy, and then a little later discovering that this person is wicked and untrustworthy - and then having this experience again with another. And whenever somebody experiences this many times, and especially at the hands of just those he might regard as his most intimate friends and comrades, he then ends up taking offense all the time and hates all human beings and believes there's nothing at all sound in anybody.

[W]hen men have both done and suffered injustice and have had experience of both, not being able to avoid the one and obtain the other, they think that they had better agree among themselves to have neither; hence there arise laws and mutual covenants; and that which is ordained by law is termed by them lawful and just. This they affirm to be the origin and nature of justice;__t is a mean or compromise,between the best of all, which is to do injustice and not be punished, and the worst of all, which is to suffer injustice without the power of retaliation; and justice, being at a middle point between the two, is tolerated not as a good, but as the lesser evil_

There is nothing which for my part I like better, Cephalus, than conversing with aged men; for I regard them as travellers who have gone a journey which I too may have to go, and of whom I ought to inquire, whether the way is smooth and easy, or rugged and difficult.

Jobs also used the meetings to enforce focus. At Robert Friedland's farm, his job had been to prune the apple trees so that they would stay strong, and that became a metaphor for his pruning at Apple. Instead of encouraging each group to let product lines proliferate based on marketing considerations, or permitting a thousand ideas to bloom, Jobs insisted that Apple focus on just two or three priorities at a time. " There is no one better at turning off the noise that is going on around him," Cook said. " That allows him to focus on a few things and say no to many things. Few people are really good at that.

Concentration comes out of a combination of confidence and hunger.