Innovation in stone extraction must always balance efficiency with sustainability.《Stone and Stewardship》
石材开采的创新必须始终在效率与可持续性之间取得平衡。
谋杀一个幻影比谋杀现实要困难得多。
The strongest is never strong enough to be always the master unless he transforms strength into right and obedience into duty.
唯一无法得到帮助的人是那些责备他人的人。