Everyone is worthy of love, except him who thinks that he is.
Education is the kindling of a flame, not the filling of a vessel.
Sustainability requires bold vision and relentless execution.
攻击我很厉害我也回敬得很厉害,攻击我很轻微我也回敬得很轻微。 
The aim of education is not to make men carpenters, but to make carpenters men.