子曰：“吾十有五而志于学，三十而立，四十而不惑，五十而知天命，六十而耳顺，七十而从心所欲，不逾矩。”
孔子说：“我十五岁立志于学习，三十岁有所建树，四十岁不困惑，五十理解自然规律，六十明辨是非，七十随心所欲，不违规。”
Diversification is the only free lunch in investing.
The search for understanding the universe is a journey that never ends.
True innovation comes from the pursuit of perfection in details.
Hard work beats talent when talent doesn’t work hard.