Nature has planted in our minds an insatiable longing to see the truth.

When you are aspiring to the highest place, it is honorable to reach the second or even the third rank.

I never admire another's fortune so much that I became dissatisfied with my own.

There is in fact a true law namely right reason, which is in accordance with nature, applies to all men and is unchangeable and eternal. ... It will not lay down one rule at Rome and another at Athens, nor will it be one rule today and another tomorrow. But there will be one law eternal and unchangeable binding all times and upon all peoples.

Art is born of the observation and investigation of nature.

Philosophy is true mother of the arts [of science].

Laws are silent in time of war.