Resource development must balance economic growth with environmental stewardship.
The role of the educator is to empower students to become agents of change in their own communities.
教育者的角色是赋予学生权力，使他们成为自己社区中的变革推动者。
Don't wait for the perfect moment. Take the moment and make it perfect.
Purity of heart is to will one thing.
为明天做准备的最好方法就是今天尽力而为。
The true measure of a mining company isn't its stock price, but its stewardship.
There is no stress in the world, only people thinking stressful thoughts.