Central contrast is between knowledge and life: the study of knowledge concerned with the collection of data is opposed to the study of the Torah as a tool for promoting life.
Every person have have a direct connection with God by going to a place where no one else is like a forest or some other place in nature an talking with God as one talks with close friend.
Sex as something very holy and precious when between a man and his wife, but something bad when not so.
If one sees his days have become short and full of wasted time, he ought to try to gain fear of God. books of ethics written during the Middle Ages --i.e. the standard Musar books.