There is no shortcut to be a person of genuine substance. Foundation can only be built through hard work.

You cannot build a foundation without effort and hard work, and without a solid foundation, you cannot become a person of genuine substance. Please make no mistake about this. Cunning people who shun hard work and seek to make it big overnight invariably come to a fall in the end.
[GT5-144]

Strive to be like Edison, never giving up for the sake of others

Edison worked to invent things that were of practical benefit to humanity. He was clear about his purpose. He wasn't simply interested in personal acclaim or riches. And he pursued his endeavours with a "never give up" spirit. Let's not give up in our efforts to help even a single person become happy.
[Adapted from GT4-155]

Human revolution is any action that leads to positive change... in the inner realm of a person's life.

When a person who is seriously ill recovers, that is a great human revolution. When a mean person becomes kind to others, that is human revolution. When people who treat their parents poorly begin to respect and love them, that is human revolution. Human revolution cannot be pinned down to one specific thing. It is any action that leads to positive change or improvement in the inner realm of a person's life.
[GT4-154] *

Strength is the source of happiness

Strength is the source of happiness. We mustn't shy away from life's challenges. We mustn't be defeated. Refusing to be defeated equals victory. A person who perseveres to the end is a winner.
[GT4-153] *