144 Quotes by Niels Bohr

When it comes to atoms, language can be used only as in poetry.

Address to Albert Einstein: You are not thinking. You are merely being logical.

Isolated material particles are abstractions, their properties being definable and observable only through their interaction with other systems .

All rising curves that show unwelcome trends in human affairs will approach infinity if extended far enough, but it is we who dictate the curve and not vice versa.

The great extension of our experience in recent years has brought light to the insufficiency of our simple mechanical conceptions and, as a consequence, has shaken the foundation on which the customary interpretation of observation was based.

No paradox, no progress.

The old saying of the two kinds of truth. To the one kind belongs statements so simple and clear that the opposite assertion obviously could not be defended. The other kind, the so-called 'deep truths', are statements in which the opposite also contains deep truth.

Sometimes the child in one behaves a certain way and the rest of oneself follows behind, slowly shaking its head.

If an idea does not appear bizarre, there is no hope for it.