Explain two verses: hard work is not necessarily the end of the day, and difficult hands must be unbearable. thank you

Hard work is not necessarily the end of the day; The reality is cruel. Many people with lofty ideals have paid too much, but they have not succeeded. But God will not fail everyone. As long as you are willing to work hard and are not afraid of hardship, God may not fail you, and an iron hand will certainly prevent people. Be a man, don't have the heart to harm others, don't have the heart to prevent others, be a hypocritical gentleman, and be a wretched villain. It is necessary to talk to these people, they will be unpredictable.