I have offended God and mankind because my work didn't reach the quality it should have.
Thou, O God, dost sell us all good things at the price of labor
A well-spent day brings happy sleep
Nothing can be love or hated unless it is first known.
Anyone who conducts an argument by appealing to authority is not using his intelligence he is just using his memory
Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous.
Learning never exhausts the mind
People react to fear, not love - they don't teach that in Sunday School, but it's true.
Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.
Nature is full of infinite causes that have never occurred in experience.
Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen
A good painter is to paint two main things, men and the working of man's mind.
The poet ranks far below the painter in the representation of visible things, and far below the musician in that of invisible things.
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
You do ill to praise, but worse to censure, what you do not understand
Simplicity is the ultimate sophistication.
He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.
In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time.
Time stays long enough for anyone who will use it.
Beyond a doubt truth bears the same relation to falsehood as light to darkness.
A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.
Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.
What is fair in men, passes away, but not so in art
The painter has the Universe in his mind and hands.