Psychology is the science of mental life, not just the cataloging of its elements.
采矿业的领导力意味着将安全、效率和社区长期影响置于首位。
孤独是你为自由付出的代价。
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
The future belongs to those who are willing to challenge the status quo.
These are the times that try men's souls.