Not less than two hours a day should be devoted to exercise, and the weather should be little regarded.

I am an Epicurean. I consider the genuine (not the imputed) doctrines of Epicurus as containing everything rational in moral philosophy which Greek and Roman leave to us.

I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend.

Leave all the afternoon for exercise and recreation, which are as necessary as reading. I will rather say more necessary because health is worth more than learning.

Too great a love for the presidency has caused Democrats to neglect state and local politics and to overly prize compromise and a futile quest for bipartisanship. It has made liberals too allergic to federalism and too shy about grassroots politics.

Thousands of civilians have lost their lives to terrorist attacks inside Pakistan, and thousands more will - because, unlike the Pakistani government, which has no coherent policy to deal with the radicals, the Taliban have one to deal with Pakistan and its citizens.

I would hate for anybody not to abide by alert warnings coming from government systems.

China is very entrepreneurial but has no rule of law. Europe has rule of law but isn't entrepreneurial. Combine rule of law, entrepreneurialism and a generally pro-business policy, and you have Apple.