历史不仅仅是已经发生的事情，也是可能发生的事情。
La historia no es solo lo que sucedió, sino también lo que pudo haber sucedido.
Man is least himself when he talks in his own person. Give him a mask, and he will tell you the truth.
"To love oneself is the beginning of a lifelong romance."
We are never as happy or as unhappy as we imagine.
The joy of mathematics is in the journey, not just the destination.
Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.
The interplay between quantum mechanics and computer science opens up new frontiers in both fields.