要理解意识，就要研究它在生存中的作用。
To understand consciousness, study its role in survival.
A law of nature， lex naturalis， is a precept or general rule found out by reason， by which a man is forbidden to do that which is destructive of his life or takes away the means of preserving the same.
文学的真正价值在于其揭示人类灵魂的力量。
实现真正自由的唯一途径是通过自律。