I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

Someone asked me what happiness is; I replied, not pursuing unnecessary things.

Hope is a scarce resource in poor communities.

墨西哥是一个始终处于形成过程中的国家，从未真正到达终点。