In mathematics, truth is always relative to the system you're working in.
La luz de Andalucía no se pinta, se escribe.
Our farmers are the backbone of this industry; we must support them with both technology and fair policies.
数学家最好的工作往往来自于在别人看不到联系的地方发现联系。
The mind once enlightened cannot again become dark.
做你自己，其他角色都已经有人扮演了。