过去是一个异国他乡；他们在那里做不同的事情。
The past is a foreign country; they do things differently there.
The growth of an enterprise is a process of continuous trial and error.
Cada palabra es un mundo, cada verso un universo.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
我只是一个来自加拿大、怀揣梦想的孩子。