照片实际上是所指的散发。从一个真实的身体,曾经在那里,发出的辐射最终触及到我,我在这里。
The PAC learning framework provides a formal way to quantify the learnability of a concept class.
言辞不仅可以用来描述现实,还可以用来创造新的现实。
你必须享受其中。如果你不开心,那有什么意义?
"Nothing is too high for a man to reach, but he must climb with care and confidence."