Special emphasis should be laid on this intimate interrelation of general statements about empirical fact with the logical elements and structure of theoretical systems. ↗
The main concern of the study is with the outline of a theoretical system. Its minor variations from writer to writer are not a matter of concern to this analysis. ↗
Thus, in general, in the first instance, the direction of interest in empirical fact will be canalised by the logical structure of the theoretical system. ↗
Everything that people lob at you who don't know you, it all hurts. When you're doing something as simple as making music, which really, theoretically, shouldn't hurt anyone - I mean, it's a song! Step back for five seconds and laugh. ↗
A theoretical system does not merely state facts which have been observed and that logically deducible relations to other facts which have also been observed. ↗
If philosophy is practice, a demand to know the manner in which its history is to be studied is entailed: a theoretical attitude toward it becomes real only in the living appropriation of its contents from the texts. ↗
The methods of theoretical physics should be applicable to all those branches of thought in which the essential features are expressible with numbers. ↗