When you say you “Know” something, then to a large degree, you are lying.
“I know”, closes more doors to new possible discoveries that might contradict your “Known”.
The Psychology of Man’s Possible Evolution
“What is lying?
As it is understood in ordinary language, lying means distorting or in some cases hiding the truth, or what people believe to be the truth. This lying plays a very important part of life, but there are much worse forms of lying, when people do not know that they lie. I said in my first lecture that we cannot know the truth in our present state, and can only know the truth in the state of objective consciousness. How then, can we lie? There seems to be a contradiction here, but in reality there is none. We cannot know the truth, but we can pretend that we know. And this is lying. Lying fills all our life. People pretend that they know all sorts of things: about God, about the future life, about the universe, about the origin of man, about evolution, As it is understood in ordinary language,about everything; but in reality they do not know anything, even about themselves. And every time they speak about something they do not know as though they knew it, they lie. Consequently the study of lying becomes the first importance in psychology.”