The leather industry must evolve with sustainability at its core, or it will become obsolete.
一本书不仅仅是纸和墨水;它是活着的呼吸。
对自由民主最严重的威胁来自内部,来自制度的衰败和对它们的信任的丧失。
Mathematics is the science of patterns, and nature exploits every possible pattern.