True friends are not those who have endless topics to talk about, but those who can stay together without feeling awkward even if they don't speak.

The march of science and technology does not imply growing intellectual complexity in the lives of most people. It often means the opposite.

The greatest prosperity can exist only as the result of the greatest possible productivity of the men and machines of the establishment.

教育是一盏灯，但许多人从未找到开关。