我最好的年华是在50岁之后。年龄只是一个数字——重要的是你的态度。
I’ve had my best years after fifty. Age is just a number—it’s your attitude that counts. 
Work lovingly done is the secret of all life and all art.
在科学中,失败不是成功的对立面,而是通向成功的垫脚石。
A publicist nowadays is a man who bores the community with the details of the illegalities of his private life.
Innovation is to imitate first.