The march of invention has clothed mankind with powers of which a century ago the boldest imagination could not have dreamt.
Without bold guesses， there will be no great discoveries.
悲伤是私人的事。它需要多久就会持续多久。
最终，一个理论的价值不在于它的复杂性，而在于它解释和预测的能力。
有时最小的东西占据了心中最大的空间。
The art of any culture is the exponent of its social relationships.
Nunca dejes de soñar, porque los sueños son el combustible del alma.