Happiness is beneficial for the body, but it is grief that develops the powers of the mind.
To tax the larger incomes at a higher percentage than the smaller, is to lay a tax on industry and economy; to impose a penalty on people for having worked harder and saved more than their neighbors.
The most dangerous thing is not failure, but complacency.
成功不是幸福的关键。幸福是成功的关键。如果你热爱你所做的事情,你就会成功。