困苦受辱不值得忧虑，而自取困辱才值得忧虑。荣耀利益不是真正的快乐，忘掉荣耀利益才是真正的快乐。
精神工作导致的疲劳不是因为工作的数量，而是因为工作的质量。
解释：只要心胸坦荡，不必顾虑没有施展抱负的地方。
The world is a book, and those who do not read live only one life.
Focus on being productive instead of busy.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Les lois sont des toiles d'araignée à travers lesquelles passent les grosses mouches et où restent les petites.