The interplay between syntax and semantics is central to the study of formal languages.
The capacity of the human mind for forming and manipulating symbols is what sets us apart from other animals.
文學(xué)是燃燒在我們內(nèi)心的火焰，一種消耗和凈化的火焰，一種照亮和溫暖的火焰。
You know, in the Middle Ages, in England, when you met a very poor person, that person would be described as an "unfortunate" -- literally, somebody who had not been blessed by fortune, an unfortunate.
Success is not final, failure is not fatal: It is the courage to continue that counts.