It is proved...that things cannot be other than they are, for since everything was made for a purpose, it follows that everything is made for the best purpose.
Though the Life Force supplies us with its own purpose, it has no other brains to work with than those it has painfully and imperfectly evolved in our heads.
It is worthwhile for one to make an effort to achieve happiness. Just as the purpose of a plant is to grow, so it is that the main purpose of every human being is to survive and to grow until death.
Find the thing you want to do most intensely, make sure that’s it, and do it with all your might. If you live, well and good. If you die, well and good. Your purpose is done