The only limit to our realization of tomorrow is our doubts of today.
历史只有在被书写时才存在。
If a doctrine is not unintelligible, it has to be vague; and if neither unintelligible nor vague, it has to be unverifiable.
"The more you give, the more you get."
时间和其他材料一样,是我不断使用的材料。
Science is not just about finding answers, but also about asking the right questions.