We feel that even if all possible scientific questions be answered, the problems of life have still not been touched at all.[Wir fühlen, dass selbst, wenn alle möglichen wissenschaftlichen Fragen beantwortet sind, unsere Lebensprobleme noch gar nicht berührt sind.]
To be independent of public opinion is the first formal condition of achieving anything great or rational whether in life or in science.
This violent reaction on the recent development of modern physics can only be understood when one realizes that here the foundations of physics have started moving; and that this motion has caused the feeling that the ground would be cut from science.
The existing scientific concepts cover always only a very limited part of reality, and the other part that has not yet been understood is infinite.
The advantage of the emotions is that they lead us astray, and the advantage of Science is that it is not emotional.
That science is eminently perfectible, and that each theory has constantly to give way to a fresh one.