I forgot to include these other sentences. I hope you can have a look at them, too.

1) If death, unlike sleep, is an end in itself, that is all earthly troubles are finished with it, then it is very desirable. As in sleep there is the possibility of dreaming, Hamlet wonders if there will be dreams after death.
2)It is for this reason that human beings are so reluctant to take their own lives, and would rather bear earthly sorrows and troubles (than fly to others they don’t know of).
3)This is the rub, that is the obstacle, which makes us hesitate. In the game of bowls, the rub was an obstacle in the ground which prevented the ball from going in its proper course.
4) Death is divided into sleep, which is desirable, and dreams. The Medieval perspective in which Hamlet sees death as physical liberation from the prison of the body and earthly affliction is countered by the doubt of the Renaissance man, concerning the after life.
5)Hamlet considers the reasons which may led (?) us to take our own life.Hamlet thinks of the punishments and insults which those (people?) who are good and quiet take (?) from those who are unworthy. In particular, he refers to the oppressor’s wrong (how can I rephrase this?), the proud rudeness of those who hold official positions, the pangs of disprized love (how can I rephrase this?)
6) Though it would take only a small knife to put an end to our sorrows (to bring relief), the fear of something after death, expressed in the image of the unknown country from where no traveller comes back, paralyses the will and prevents self-destruction.
7) The pale cast of thought, which is not far from a moral conscience, turns the native hue of resolution pale and sick.

#5 - lead (not "led")

Use http://www.thesaurus.com to find synonyms; then revise and repost.

#6 - from which (not "from where")

1) The first sentence discusses the desire for death to be an end to earthly troubles, similar to how sleep provides relief from daily worries. Hamlet contemplates whether there will be dreams after death, just as there are dreams during sleep.

2) The second sentence explains why humans are hesitant to take their own lives. Instead of facing unknown sorrows or troubles after death, they would rather endure the earthly sorrows they already know.

3) The third sentence describes the phrase "this is the rub," which means an obstacle or hindrance. It draws a comparison to the game of bowls, where a rub is an obstacle on the course that prevents the ball from going in its intended direction.

4) The fourth sentence highlights the distinction between death as sleep (which is desirable) and death as dreams. Hamlet's perspective is influenced by the Medieval belief that death frees the soul from the earthly body, whereas the Renaissance doubts the existence of an afterlife.

5) The fifth sentence explores the reasons that might lead someone to consider suicide. Hamlet reflects on the mistreatment suffered by good and quiet individuals at the hands of unworthy people. He mentions the oppressor’s wrongdoings, the proud behavior of those in positions of power, and the pain of unrequited love.

6) The sixth sentence examines the fear of the unknown after death, which prevents individuals from taking their own lives. This fear is expressed through the metaphor of an unknown country from which no traveler returns. It paralyzes the will and deters self-destruction.

7) The seventh sentence discusses the impact of deep contemplation on one's willpower. The "pale cast of thought" refers to a moral conscience, causing one's resolution (or determination) to appear weak and feeble. It suggests that excessive thinking can hinder decisive action.