To be a Jew is to be a witness.
Learning consists in the modification of certain mediating processes which operate between the stimulus and the response.
唯一能让你成功的是努力工作。
The destiny of world civilization depends upon providing a decent standard of living for all mankind.
The only real voyage of discovery consists not in seeking new landscapes, but in having new eyes.
创新不仅仅是创造新事物，更是改进已有的事物。
The only limit is the one you set for yourself.
"To understand a country, you must understand its silences."