生活中唯一的限制是你自己设定的。
The only limits in life are the ones you make.
I don’t believe in failure because I don’t believe in giving up.
The best biographies are those that make the reader feel they have met the subject in person.
教育的根是苦的，但其果实是甜的。
Diplomacy is an art that requires patience, wisdom, and flexibility.
Your most unhappy customers are your greatest source of learning.
Those who cannot remember the past arecondemned to repeatit.