Millions saw the apple fall, but Newton asked why.

做出伟大工作的唯一途径是热爱你所做的事。

Man’s main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

每个人持续不断地努力改善自己的状况，这是公共、国家以及私人富裕最初来源的原则。