Our ignorance can be divided into problems and mysteries. When we face a problem, we may not know its solution, but we have insight, increasing knowledge, and an inkling of what we are looking for. When we face a mystery, however, we can only stare in wonder and bewilderment, not knowing what an explanation would even look like.

Ignorance lies not in the things you don't know, but in the things you know that ain't so.

A definition of ignorance is not KNOWING what we DO & improvement is handicapped when we don't DO what we KNOW.

An ignorant person is one who doesn't know what you have just found out.

Ignorance, to a scientist, is an itch that begs to be pleasurably scratched. Ignorance, if you are a theologian, is something to be washed away by shamelessly making something up.

Ignorance, to a scientist, is an itch that begs to be pleasurably scratched. Ignorance, if you are a theologian, is something to be washed away by shamelessly making something up.

Mystery exists in the mind, not in reality. If I am ignorant about a phenomenon, that is a fact about my state of mind, not a fact about the phenomenon itself. All the more so, if it seems like no possible answer can exist: Confusion exists in the map, not in the territory. Unanswerable questions do not mark places where magic enters the universe. They mark places where your mind runs skew to reality.

…what things may be in themselves, I know not, and need not know because a thing is never presented to me otherwise than as a phenomena.

If there is something that opens horizons, it is precisely ignorance.

Ignorance is of a peculiar nature: once dispelled, it is impossible to re-establish it. It is not originally a thing of itself, but is only the absence of knowledge; and though man may be kept ignorant, he cannot be made ignorant.

An ignorant person is one who is tossed about between elation and despair by external forces and events.

Ignorance is of a peculiar nature; once dispelled, it is impossible to reestablish it. It is not originally a thing of itself, but is only the absence of knowledge; and though man may be kept ignorant, he cannot be made ignorant.

Ignorance is the natural state of mind for a research scientist. People who believe they are ignorant of nothing have neither looked for, nor stumbled upon, the boundary between what is known and unknown in the universe.
What we do know, and what we can assert without further hesitation, is that the universe had a beginning. The universe continues to evolve. And yes, every one of our body’s atoms is traceable to the big bang and to the thermonuclear furnaces within high-mass stars that exploded more than five billion years ago.
We are stardust brought to life, then empowered by the universe to figure itself out—and we have only just begun.

Every time that we say that God is the author of some phenomenon, that signifies that we are ignorant of how such a phenomenon was caused by the forces of nature.