繁榮建立在五個支柱上：積極情緒、投入、人際關(guān)系、意義和成就。
造紙業(yè)在環(huán)境管理方面有獨(dú)特的機(jī)會來引領(lǐng)潮流。
Mental processes are means to ends in the struggle for existence.
The laws of physics are universal, and testing them in extreme environments like the galactic center is essential.
The more you know, the more you realize you don't know.