There are in fact two things, science and opinion; the former begets knowledge, the later ignorance. Hippocrates Knowledge
Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science. Charles Darwin Knowledge
The learning and knowledge that we have, is, at the most, but little compared with that of which we are ignorant. Plato Knowledge Learning
If knowledge can create problems, it is not through ignorance that we can solve them. Isaac Asimov Knowledge
True friendship can afford true knowledge. It does not depend on darkness and ignorance. Henry David Thoreau Knowledge Friendship
By giving us the opinions of the uneducated, journalism keeps us in touch with the ignorance of the community. Oscar Wilde
Ignorance is the curse of God; knowledge is the wing wherewith we fly to heaven. William Shakespeare Knowledge
Mathematical science is in my opinion an indivisible whole, an organism whose vitality is conditioned upon the connection of its parts. David Hilbert