皮革的真正价值在于其耐用性和永恒的吸引力，而不仅仅是其美观性。
If a doctrine is not unintelligible, it has to be vague; and if neither unintelligible nor vague, it has to be unverifiable.
Sustainability must be profitable, or it won't be sustainable—this is the challenge we must solve in modern farming.《The Grain Frontier》
It is time to effect a revolution in female manners - time to restore to them their lost dignity.
The beauty of mathematics is that it is universal.