Motivational quotes have their purpose but the problem is with people who use them to shame others/trivialize others’ problems. These people reduce success and courage to will power/motivation, which is pretty simplistic. They don’t take it account privilege, genes, environment, upbringing etc..which all play a role in determining a person’s destiny. No, you cannot snap out of depression by reading a motivational book. It is a complex issue and reducing it to lack of will power is insensitive.