Medical research in the twentieth century mostly takes place in the lab in the Renaissance though researchers went first and foremost to the library to see what the ancients had said.

Fascism is a religion. The twentieth century will be known in history as the century of Fascism.

Unquestionably it is possible to do without happiness it is done involuntarily by nineteen-twentieths of mankind.

The income tax is a twentieth-century socialist experiment that has failed. Before the income tax was imposed on us just 80 years ago government had no claim to our income. Only sales excise and tariff taxes were allowed.

One of the peculiar sins of the twentieth century which we've developed to a very high level is the sin of credulity. It has been said that when human beings stop believing in God they believe in nothing. The truth is much worse: they believe in anything.

In the nineteenth century the problem was that God is dead. In the twentieth century the problem is that man is dead.

Just as the Security Council was largely irrelevant to the great struggle of the last half of the twentieth century - freedom against Communism - so too it is largely on the sidelines in our contemporary struggles against international terrorism and the proliferation of weapons of mass destruction.

Early-twentieth-century abstraction is art's version of Einstein's Theory of Relativity. It's the idea that changed everything everywhere: quickly decisively for good.

It is not possible to overstate the influence of Paul Cezanne on twentieth-century art. He's the modern Giotto someone who shattered one kind of picture-making and invented a new one that the world followed.

Ads are the cave art of the twentieth century.