The most successful businesses are those that align profit with purpose.
The most important property of a program is whether it accomplishes the intention of its user.
科学的力量在于它的普遍性和无私性,它超越了国界和文化的限制。
Liberty means responsibility. That is why most men dread it.
购买股票的最佳时机是它们不受欢迎的时候。