There is no harm in doubt and skepticism, for it is through these that new discoveries are made.

The world is a dynamic mess of jiggling things

The thing that doesn't fit is the thing that is most interesting.

If we want to solve a problem that we have never solved before, we must leave the door to the unknown ajar.

While I am describing to you how Nature works, you won't understand why Nature works that way. But you see, nobody understands that.

I can live with doubt and uncertainty and not knowing. I think it is much more interesting to live not knowing than to have answers that might be wrong. If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives. We will not become enthusiastic for the fact, the knowledge, the absolute truth of the day, but remain always uncertain … In order to make progress, one must leave the door to the unknown ajar.

If you have any talent, or any occupation that delights you, do it, and do it to the hilt. Don't ask why, or what difficulties you may get into.