A colleague who met me ...

A colleague who met me strolling rather aimlessly in the beautiful streets of Copenhagen said to me in a friendly manner, "You look very unhappy"; whereupon I answered fiercely, "How can one look happy when he is thinking about the anomalous Zeeman effect?".
 Wolfgang Pauli

Quotes from the same author

Aristotle was by far a less able thinker than Plato ... he was completely overwhelmed by Plato.
 Wolfgang Pauli
To us ... the only acceptable point of view appears to be the one that recognizes both sides of reality-the quantitative and the qualitative, the physical and the psychical-as compatible with each other, and can embrace them simultaneously ... It would be most satisfactory of all if physis and psyche (i.e., matter and mind) could be seen as complementary aspects of the same reality.
 Wolfgang Pauli
Although I have no objection to accepting the existence of relatively constant psychic contents that survive personal ego, it must always be born in mind that we have no way of knowing what these contents are actually like "as such." All we can observe is their effect on other living people, whose spiritual level and whose personal unconscious crucially influence the way these contents actually manifest themselves.
 Wolfgang Pauli
The best that most of us can hope to achieve in physics is simply to misunderstand at a deeper level.
 Wolfgang Pauli
Later, however, I came to recognize the objective nature of these dreams or fantasies ... Thus it was that I gradually came to acknowledge that such fantasies or dreams are neither meaningless nor purely arbitrary but rather convey a sort of "second meaning" of the terms applied.
 Wolfgang Pauli