Don’t take it personally when someone turns you down. Assume they are like you: busy, occupied, distracted. Try again later. It’s amazing how often a second try works.
夜晚是一塊畫布,而我們是顏料。
自守表示的研究揭示了數(shù)域的隱藏對稱性。
無知永遠不比知識更好。