The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the language of the past, the nearer I shall feel the breath of universal history.
农民兴旺，社区繁荣；农业挣扎，社会痛苦。
理解计算的基本限制对于技术的未来至关重要。
有机催化剂的美在于它们的多样性和适应性。
The only limit to our realization of tomorrow is our doubts of today.