It is with children that we have the best chance of studying the development of logical knowledge, mathematical knowledge, physical knowledge, and so forth.
Jean Piaget

Our problem, from the point of view of psychology and from the point of view of genetic epistemology, is to explain how the transition is made from a lower level of knowledge to a level that is judged to be higher.
Jean Piaget

In other words, knowledge of the external world begins with an immediate utilisation of things, whereas knowledge of self is stopped by this purely practical and utilitarian contact.
Jean Piaget

To express the same idea in still another way, I think that human knowledge is essentially active.
Jean Piaget

Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next.
Jean Piaget

We do not need to be shoemakers to know if our shoes fit, and just as little have we any need to be professionals to acquire knowledge of matters of universal interest.
Georg Wilhelm Friedrich Hegel

Happiness exists on earth, and it is won through prudent exercise of reason, knowledge of the harmony of the universe, and constant practice of generosity.
Jose Marti

Ignorance is never better than knowledge.
Enrico Fermi

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.
Enrico Fermi

The understanding of art depends finally upon one's willingness to extend one's humanity and one's knowledge of human life.
Ralph Ellison

Science is the knowledge of consequences, and dependence of one fact upon another.
Thomas Hobbes

If education is always to be conceived along the same antiquated lines of a mere transmission of knowledge, there is little to be hoped from it in the bettering of man's future. For what is the use of transmitting knowledge if the individual's total development lags behind?
Maria Montessori

We are drowning in information but starved for knowledge.
John Naisbitt

Even knowledge has to be in the fashion, and where it is not, it is wise to affect ignorance.
Baltasar Gracian

In order to the existence of such a ministry in the Church, there is requisite an authority received from God, and consequently power and knowledge imparted from God for the exercise of such ministry; and where a man possesses these, although the bis.
John Wycliffe

True knowledge lies in knowing how to live.
Baltasar Gracian

Consider your origins: you were not made to live as brutes, but to follow virtue and knowledge.
Dante Alighieri

The science of politics is the one science that is deposited by the streams of history, like the grains of gold in the sand of a river; and the knowledge of the past, the record of truths revealed by experience, is eminently practical, as an instrument of action and a power that goes to making the future.
Lord Acton

Men honor what lies within the sphere of their knowledge, but do not realize how dependent they are on what lies beyond it.
Zhuangzi

Cherish that which is within you, and shut off that which is without; for much knowledge is a curse.
Zhuangzi