“There are three signs of a knowledgeable person: knowledge, forbearance and silence.”

Vanity prevents improvement

The disease of the heart is worse than the disease of the body.

There is no rest for the person who has envy, and there is no love for the person who has bad manners.

True friends are a single soul divided between different bodies.

Bear sorrows and calamities patiently, otherwise you will never be happy.

The vision of the eye is limited; the vision of the heart transcends all barriers of time and space.

To fight against one’s desires is the greatest of all fights.

Stubbornness destroys good advice.

Courtesy costs nothing, but buys everything.

Never make a decision in anger and never make a promise in happiness.

Nothing hurts a good soul and kind heart more than to live amongst people who can’t understand it.

The best revenge is to improve yourself.

A True friend is one who sees a fault, gives you advice and who defends you in your absence.

Silence is the garden of thought.

Not every man with a heart is understanding, nor every man with an ear a listener, and nor every man with eyes able to see.

Do not hate what you do not know, for the greater part of knowledge consists of what you do not know.

Knowing “why” (an idea) is more important than learning “what” (the fact).

If you do not know the names of things, the knowledge of them is lost, too.

Scientific knowledge scarcely exists amongst the higher classes of society. The discussion in the Houses of Lords or of Commons, which arise on the occurrence of any subjects connected with science, sufficiently prove this fact.

One knows so little. When one knows more it is too late.

It will be readily admitted, that a degree conferred by an university, ought to be a pledge to the public that he who holds it possesses a certain quantity of knowledge.

As areas of knowledge grow, so too do the perimeters of ignorance.

Scientific discovery and scientific knowledge have been achieved only by those who have gone in pursuit of it without any practical purpose whatsoever in view.

There is, however, another purpose to which academies contribute. When they consist of a limited number of persons, eminent for their knowledge, it becomes an object of ambition to be admitted on their list.