最危险的毒药是成就感。解药是每天早上都像个初学者一样思考。
The most dangerous poison is the feeling of achievement. The antidote is to think like a beginner every morning.
The most important thing in mathematics is to understand the concepts, not just to memorize formulas.
The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.
Sustainability isn't an option - it's our responsibility to future generations.
"Sometimes the greatest act of rebellion is simply to remember."