1. Balzac: Adverse luck is the touchstone of character;

2. Aristotle: Pity is caused by a person suffering misfortune, fear is caused by the misfortune suffered by a person. Caused by people being similar to us;

3. Beethoven: One of the great advantages of outstanding people is that they are persevering in adverse and difficult encounters;

4. Emerson Health: Every setback or unfavorable mutation carries the same or greater beneficial seeds;

5. Byron: Disaster is the first journey of truth.