法律效力的概念对于理解法律的本质至关重要。
The concept of legal validity is crucial for understanding the nature of law.
"写作是一种孤独的职业，但孤独是作家的朋友。"
The science of government it is my duty to study, more than all other sciences; the arts of legislation and administration and negotiation ought to take the place of, indeed exclude, in a manner, all other arts.
Love, love, love, that is the soul of genius.