Our envy of others devours us most of all. — Alexander Solzhenitsyn. Soviet-Russian author and dissident (1918–2008) Jealousy
You only have power over people so long as you don't take everything away from them. But when you've robbed a man of everything, he's no longer in your power - he's free again.
Do not pursue what is illusory - property and position: all that is gained at the expense of your nerves decade after decade and can be confiscated in one fell night. Live with a steady superiority over life - don't be afraid of misfortune, and do not yearn after happiness; it is after all, all the same: the bitter doesn't last forever, and the sweet never fills the cup to overflowing.
It is not because the truth is too difficult to see that we make mistakes. It may even lie on the surface; but we make mistakes because the easiest and most comfortable course for us is to seek insight where it accords with our emotions— especially selfish ones.
If only it were all so simple! If only there were evil people somewhere committing evil deeds, and it were necessary only to separate them from the rest of us and destroy them. But the line dividing good and evil cuts through the heart of every human being. And who is willing to destroy a piece of his own heart?
Own only what you can carry with you; know language, know countries, know people. Let your memory be your travel bag.