人生は、予測不可能な冒険である。
Mathematics is a universal language that transcends cultural and linguistic barriers.
The more you say, the less people remember.
People can be divided into these types: strangers, acquaintances, familiar people, friends, and close friends. True friendship isn't about compliments to your face, but whether you're mentioned when they talk about friends behind your back.
尊重孩子正在进行的所有合理的活动并试着了解，是我们教育方法中最首要的原则。
The most important thing in mathematics is to ask the right questions.