It is an acknowledged fact that we perceive errors in the work of others more readily than in our own.

Truly man is the king of beasts, for his brutality exceeds them. We live by the death of others. We are burial places.

The worst evil which can befall the artist is that his work should appear good in his own eyes.

He is a poor pupil who does not go beyond his master.

He who does not punish evil, commands it to be done.

We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary to the senses, such as the existence of God and the soul.

Those who, in debate, appeal to their qualifications, argue from memory, not from understanding.

Experience does not err; only your judgments err by expecting from her what is not in her power.

What is fair in men, passes away, but not so in art

The human bird shall take his first flight,filling the words with amazement,all writings with his fame,and bringing eternal glory to those whose nest whence he sprang.

Whatever you do in life, if you want to be creative and intelligent, and develop your brain, you must do everything with the awareness that everything, in some way, connects to everything else. Leonardo da Vinci

Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works.

The greatest deception men suffer is from their own opinions.

Be a mirror, absorb everything around you and still remain the same

It's not enough that you believe what you see. You must also understand what you see.

Experience is a truer guide than the words of others.

Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity.

Nothing strengthens authority so much as silence.

I am not poor. Poor are those who desire many things.