The thrust of our message must be that there are things we don't know and it's okay not to know— even in death. Not claiming to know something you don't know isn't a character flaw, it is a virtue.

Why you gotta act like you know, if you don't know? It's okay if you don't know everything.

is okay to not have the answer one of the bravest things you can do is boldly embrace the unknown, accept your fear, and continue to move forward a clear mission does not always have a clear path

The best thing about being dead is that you don't know about it. It's like being stupid - it's only painful for others.

It is more important to know that you don't know, than to know what you know.

For it is really better for us not to know a thing, because [God] has not revealed it to us, than to know it according to man’s wisdom, because he has been bold enough to assume it.

It's not what you don't know that kills you but what you know that isn't so.

It’s always okay to admit when you don’t know something. If you couldn’t do this, you would never truly know anything.

Not to know certain things is a great part of wisdom.

There is nothing inherently wrong with not knowing as much as people think you should or not knowing everything. There is no need to feel any sort of shame.

Far from being embarrassing, not knowing is one of the smartest things we are all capable of.

I can live with doubt, and uncertainty, and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong. I have approximate answers, and possible beliefs, and different degrees of certainty about different things, but I'm not absolutely sure of anything. There are many things I don't know anything about, such as whether it means anything to ask "Why are we here?" I might think about it a little bit, and if I can't figure it out then I go on to something else. But I don't have to know an answer. I don't feel frightened by not knowing things, by being lost in the mysterious universe without having any purpose — which is the way it really is, as far as I can tell. Possibly. It doesn't frighten me.

The mind seeks clarity, but our souls prefer to wander into ambiguity. It's OKAY to not know your future. It's acceptable to have no idea what you want to do. Don't let anyone trick you into thinking otherwise.
An offer, opportunity, breakthrough, or brain wave could happen at any moment and change the trajectory of your life. Surely the key to life is being open to such a possibility.
Let none of us be fooled into thinking we need to know what the future holds. Everyone's been brainwashed into thinking they know or should know. We'll be alright if we simply keep moving forward. At least, that's what I keep telling myself. So next time someone asks about your five-year plan, maybe shrug your shoulders and admit, "I don't know - I'm happy to see where life takes me."

We absolutely must leave room for doubt or there is no progress and no learning. There is no learning without having to pose a question. And a question requires doubt. People search for certainty. But there is no certainty. People are terrified — how can you live and not know? It is not odd at all. You only think you know, as a matter of fact. And most of your actions are based on incomplete knowledge and you really don't know what it is all about, or what the purpose of the world is, or know a great deal of other things. It is possible to live and not know.