Freedom is the recognition of necessity.

The pursuit of knowledge for its own sake, an almost fanatical love of justice, and the desire for personal independence—these are the features of the Jewish tradition which make me thank my stars that I belong to it.

可持续发展不再是选择，而是负责任企业的唯一出路。

善于教导的人必须遇到善于学习的人，才能使教育的效果更大。

忧愁在我心中沈寂平静，正如黄昏在寂静的林中。