Don’t fight sickness or unhappiness, for those are the means by which an organism frees itself from what is alien
Why do you want to shut out of your life any uneasiness, any misery, any depression, since after all you don't know what work these conditions are doing inside you? Why do you want to persecute yourself with the question of where all this is coming from and where it is going? Since you know, after all, that you are in the midst of transitions and you wished for nothing so much as to change. If there is anything unhealthy in your reactions, just bear in mind that sickness is the means by which an organism frees itself from what is alien; so one must simply help it to be sick, to have its whole sickness and to break out with it, since that is the way it gets better.
Happiness consists in frequent repetition of pleasure.
I wish you endless dreams and the furious desire to make some of them come true.
I wish you to love what you need to love and forget what you need to forget.
I wish you passions, I wish you silences. I wish you bird songs on waking up and children's laughter.
I wish you to respect the differences of others, because the merit and value of each one is often to be discovered. I wish you to resist the bogging down, the indifference and the negative virtues of our times.
Finally, I wish you never to give up research, adventure, life, love, because life is a magnificent adventure and no reasonable person should give it up without fighting a hard battle.
Above all, I wish you to be you, proud and happy, because happiness is our true destiny.
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Yet, certainly, the wise learn many things from their enemies; for caution preserves all things. From a friend you could not learn this, but your foe immediately obliges you to learn it. For example, the states have learned from enemies, and not from friends, to build lofty walls, and to possess ships of war. And this lesson preserves children, house, and possessions.