The leather industry must evolve to meet both environmental standards and consumer expectations without compromising quality.
皮革行业必须发展，以满足环境标准和消费者期望，同时不牺牲质量。
作家应该是他时代的见证者，现实的记录者。
The true teacher defends his pupils against his own personal influence. He inspires self-trust. He guides their eyes from himself to the spirit that quickens him. He will have no disciple.
The past is always tense, the future perfect.