你不是通过遵循规则学会走路的。你是通过实践和跌倒学会的。
You don't learn to walk by following rules. You learn by doing, and by falling over.
没有任何一位总统能够忠实地、认真地履行他的职责,还能有闲暇时间。
数学不是一项观赏性运动。
The tobacco industry must evolve, not just for compliance, but for long-term relevance.