To work in this spirit would be my task from now on!

There is a continuum which starts with direct sensory observations and proceeds to enormously complex, indirect methods of observation.

In science there are no 'depths'; there is surface everywhere.

If one is interested in the relations between fields which, according to customary academic divisions, belong to different departments, then he will not be welcomed as a builder of bridges, as he might have expected, but will rather be regarded by both sides as an outsider and troublesome intruder.

Logic is the last scientific ingredient of Philosophy; its extraction leaves behind only a confusion of non-scientific, pseudo problems.

Only a person who has passed through the gate of humility can ascend to the heights of the spirit.