Success is stumbling from failure to failure with no loss of enthusiasm.

你必须由传教士而不是雇佣兵来管理。

Every mathematical problem is a puzzle waiting to be solved, and every solution is a step towards greater understanding.

成功不在于你赚了多少钱，而在于你影响了多少人的生活。

Diplomats should have the ability to respect and understand other countries and cultures, as well as the ability to communicate across language and cultural barriers.

尼安德特人并未灭绝，他们活在我们体内。