The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.
统计假设检验是一个古老的问题，但其现代处理始于内曼和皮尔逊的工作。
Peace is not just the absence of war, but the establishment of a stable, just, and sustainable international order.
成功的投资是建立在对基本面的深入了解和长期投资的基础上。
The difference between good and great is the attention to detail.