I agree with the expression “The end justifies the means.”  If a person has set a goal, he must achieve it in all ways, of course, these methods should not be harmful to other people.  When a person tries to achieve his goal, people say that he will not be able to realize it.  All the means that a person uses to do this seem unreliable to others.  But self-confidence and efforts will be able to achieve a good result. The goal, of course, should be adequate, and not absurd or to the detriment of other people or circumstances.