数学的力量在于它简化复杂事物的能力。
The power of mathematics lies in its ability to simplify the complex.
The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.
"A book is a mirror: if a fool looks in, no sage can look out."
The impact of unions on wages and employment is often misunderstood.
Making music is not about pleasing others, but about expressing yourself.