Entire ignorance is not so terrible or extreme an evil, and is far from being the greatest of all too much cleverness and too much learning, accompanied with ill bringing-up, are far more fatal. Plato
The learning and knowledge that we have, is, at the most, but little compared with that of which we are ignorant. Plato
Opinion is the medium between knowledge and ignorance. Plato
Knowledge without justice ought to be called cunning rather than wisdom. Plato
All the knowledge I possess everyone else can acquire, but my heart is all my own. Johann Wolfgang von Goethe
There is much pleasure to be gained from useless knowledge. Bertrand Russell
The possession of knowledge does not kill the sense of wonder and mystery. There is always more mystery. Anais Nin
Knowledge which is acquired under compulsion obtains no hold on the mind. Plato
One whose knowledge is confined to books and whose wealth is in the possession of others, can use neither his knowledge nor wealth when the need for them arises. Chanakya
Knowledge has to be improved, challenged, and increased constantly, or it vanishes. Peter Drucker
Even the knowledge of my own fallibility cannot keep me from making mistakes. Only when I fall do I get up again. Vincent Van Gogh
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason. Immanuel Kant
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family. Kofi Annan
All our knowledge has its origins in our perceptions. Leonardo da Vinci
Where is all the knowledge we lost with information? T. S. Eliot