我和严老相识近半个世纪,在他主持之下工作,也有整整四十年的光阴。他的为人和做学问方面的优良品质和作风,我都非常敬重。难以罄述。这里只把我感受最深的一点写出来,作为在他周年祭前的追念。 Nearly half a century has passed since I met Yan and I have worked for forty years under his auspices. I am very respectful of his good quality and style of doing things and learning. Hard to exhaustive. Here only write down the point I feel the deepest, as the anniversary of his anniversary.