Science can be divided into an infinite number of disciplines, and the amount of knowledge that can be pursued in each discipline is limitless. The most critical piece of knowledge, then, is the knowledge of what is essential to learn and what isn't.
A huge amount of knowledge is accumulated at present. Soon our abilities will be too weak, and our lives too short to study this knowledge. We have vast treasures of knowledge at our disposal but after we study them, we often do not use them at all. It would be better not to have this burden, this unnecessary knowledge, which we do not really need.
— Immanuel Kant
Too voracious reading, begun at too early an age, fill our minds with undigested material. Our memory can become the master of our feelings and our fate; and when it does, an intellectual effort is required to reinforce our feelings with primeval innocence, to find ourselves amidst the dusty heaps of foreign thoughts and viewpoints, in order to start feeling by ourselves, and I am ready to say in order to live on our own.
— George Lightenberg
Beware of false knowledge. All evil comes from it.
Knowledge is limitless. Therefore, there is a minuscule difference between those who know a lot and those who know very little.