"I don't think about the past. The only thing that matters is the everlasting present."
数学的本质在于其自由性。
真相很少是纯粹的，也从不简单。
En la oscuridad de la noche, las palabras brillan como estrellas, guiándonos hacia la luz.
数学的本质在于它的自由。
格式塔心理学的本质是理解整体组织的规律。
I've had to learn to fight all my life - got to learn to keep smiling. If you smile, things will work out.