不要为未来担忧,不要为过去哭泣。
Fear not for the future, weep not for the past.
自分を信じることが、一番の力になる。
物理定律在宇宙中任何地方都是相同的,这是一个深刻的真理。
The study of mathematics is a constant dialogue between the concrete and the abstract.
The hardest thing to explain is the glaringly evident which everybody had decided not to see.
Better to have 1 super user than 100 ordinary users.