健全的外交政策的首要条件是对自己价值观的清晰认识。
The first prerequisite of a sound foreign policy is a clear understanding of one's own values.
Anon, who wrote so many poems without signing them, was often a woman.
男性和女性在短期择偶欲望上存在差异，因为这对我们祖先的繁殖利益和代价不同。
企业的成功不在于拥有多少资源，而在于如何有效地利用这些资源。
"我不害怕死亡，我害怕生活。"
The line between good and evil is permeable and anyone can cross it when pushed by circumstances.
The best way to learn is by doing, not just by listening or reading.
物理学中的每一个发现都打开了一个新的问题领域，提醒我们追求知识是一个无尽的旅程。