An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
A precedent embalms a principle.
Simplicity is the ultimate sophistication.
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.
The best revenge is to be unlike him who performed the injury.
Everything excellent is as difficult as it is rare.
Resist much. Obey little.
No act of kindness, no matter how small, is ever wasted.
I think about the meaning of pain. Pain is personal. It really belongs to the one feeling it. Probably the only thing that is your own. I like mine.
Good advice is always certain to be ignored, but that's no reason not to give it.
You are not a drop in the ocean. You are the entire ocean, in a drop.
Never put off for tomorrow, what you can do today.
Tomorrow hopes we have learned something from yesterday.
It is always advisable to perceive clearly our ignorance.
The greatest minds are capable of the greatest vices as well as of the greatest virtues.
The smaller the mind, the greater the conceit.
We never see ourselves as others see us.
Mistakes are always forgivable, if one has the courage to admit them.
It is not enough to have a good mind; the main thing is to use it well.
Learning and wisdom are superfluities, the surface glitter merely, but it is the heart that is the seat of all power.
Whatever it is you're seeking won't come in the form you're expecting.