I find this encouraging in my life, I was not trained enough in mathematics and physics in early years so I have a hard time catching up (slowly). I find it so relieving to admit things I don’t know and I’m learning. It doesn’t frighten me to ask question and understand why.
Don't get frightened by not knowing things. 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. It doesn't frighten me.