自守形式的研究是数学思想深度的反映。

我不是时尚人士。我是反时尚的。

If a doctrine is not unintelligible, it has to be vague; and if neither unintelligible nor vague, it has to be unverifiable.

Diplomacy requires constant dialogue with other countries to enhance mutual understanding and trust.

Certification programs are more than stickers on wood products; they represent a promise to our planet.