For he, indeed, who looks into the face of a friend beholds, as it were, a copy of himself.
It is like taking the sun out of the world, to bereave human life of friendship.
It is virtue itself that produces and sustains friendship, not without virtue can friendship by any possibility exist.
Friendship is not to be sought for its wages, but because its revenue consists entirely in the love which it implies.
We are not born, we do not live for ourselves alone; our country, our friends, have a share in us.
It is not easy to distinguish between true and false affection, unless there occur one of those crises in which, as gold is tried by fire, so a faithful friendship may be tested by danger.
The habit of arguing in support of atheism, whether it be done from conviction or in pretense, is a wicked and impious practice.
In the conduct of almost every affair slowness and procrastination are hateful.
We study history not to be clever in another time, but to be wise always.
Art is born of the observation and investigation of nature.
There is no castle so strong that it cannot be overthrown by money.
I prefer the most unfair peace to the most righteous war.
Promises are not to be kept, if the keeping of them would prove harmful to those to whom you have made them.
It is the character of a brave and resolute man not to be ruffled by adversity and not to desert his post.
Not to know what has been transacted in former times is to be always a child. If no use is made of the labors of past ages, the world must remain always in the infancy of knowledge.
Mathematics is an obscure field, an abstruse science, complicated and exact; yet so many have attained perfection in it that we might conclude almost anyone who seriously applied himself would achieve a measure of success.
The Intellect engages us in the pursuit of Truth. The Passions impel us to Action.
The mansion should not be graced by its master, the master should grace the mansion.
Life is short, but art lives forever.
For there is assuredly nothing dearer to a man than wisdom, and though age takes away all else, it undoubtedly brings us that.