Reason is the cold sun, it gives light but no warmth.
理性是冰冷的太阳，它给予光明却不给予温暖。
The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them.
"Memory is the only paradise from which we cannot be expelled."
解释：使用毒性大的药物治疗疾病时，病情十成中只能去掉六成就要停药，以免伤害正气。