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.
The past is a foreign country; they do things differently there.
人类生活中痛苦和混乱的主要来源,似乎来自于高估了一种持久状况与另一种持久状况之间的差异。