How wonderful that we have met with a paradox. Now we have some hope of making progress. – Niels Bohr
Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it. – Niels Bohr
When it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with creating images. – Niels Bohr
A just thinker will allow full swing to his scepticism. I dip my pen in the blackest ink, because I am not afraid of falling into my inkpot…. We are of different opinions at different hours, but we always may be said to be at heart on the side of truth. – Ralph Waldo Emerson, “Worship,” The Conduct of Life, 1860