逻辑是所有数学推理的基础。
一本好书的衡量标准在于它让你思考和感受的程度。
The fact is that women have more power and influence in America today than at any other time in our history.
The key to trading success is emotional discipline. If intelligence were the key, there would be a lot more people making money trading.
The tragedy of great power politics is that it leads to conflict and war.
The meaning of "knowing" has shifted from being able to remember and repeat information to being able to find and use it.