"Investing in people is not as simple as just giving someone money to support them," Snape murmured, "True investment in people mainly involves befriending a person during their lowest ebb, doing your best to become their friend, and trying within your means to help them solve their problems. You see, people tend to regard friends who extend a hand during their low periods as true friends. Thus, once the individual has overcome their difficulties, they won't easily forget this friendship and will likely reciprocate as much as they can. In this way, as an investor, I could receive much more than what I had originally provided."