There are three classes of people: those who see. Those who see when they are shown. Those who do not see.
The function of muscle is to pull and not to push, except in the case of the genitals and the tongue.
I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.
Learn how to see. Realize that everything connects to everything else.
It is easier to resist at the beginning than at the end.
As you cannot do what you want, want what you can do.
Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer. Go some distance away because then the work appears smaller and more of it can be taken in at a glance and a lack of harmony and proportion is more readily seen.
One has no right to love or hate anything if one has not acquired a thorough knowledge of its nature. Great love springs from great knowledge of the beloved object, and if you know it but little you will be able to love it only a little or not at all.
While I thought that I was learning how to live, I have been learning how to die.
Where the spirit does not work with the hand, there is no art.
The artist sees what others only catch a glimpse of.
Time stays long enough for those who use it.
Iron rusts from disuse, stagnant water loses its purity, and in cold weather becomes frozen; even so does inaction sap the vigors of the mind.
Intellectual passion drives out sensuality.
Patience serves as a protection against wrongs as clothes do against cold. For if you put on more clothes as the cold increases, it will have no power to hurt you. So in like manner you must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.
All our knowledge has its origin in our perceptions.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
I have offended God and mankind because my work didn't reach the quality it should have.
God sells us all things at the price of labor.
Make your work to be in keeping with your purpose.