在冬天的深处，我发现我内心有一个不可战胜的夏天。
Facts are stubborn things; and whatever may be our wishes, our inclinations, or the dictates of our passion, they cannot alter the state of facts and evidence.
它们难分彼此，交相辉映。
关系模型的力量在于其简单性和通用性。
The only thing more dangerous than ignorance is arrogance.