Russell
An Essay on the Foundations of Geometry
1897
Bertrand Russell
An Essay on the Foundations of Geometry
Teza de doctorat a tânărului Russell — o cercetare a presupozițiilor logice și psihologice fără de care geometria nici nu ar putea fi gândită. Aici se vede deja matematicianul care va deveni filosof.
- lectură încheiată
- 15.12.2022
- citate în arhivă
- 4
— arhiva de citate
Fragmente ridicate din carte și așezate în ordinea apariției lor — sediment de gândire, nu colecție.
4 fragmente · marginalia indică pagina
- 001
„«Subjective» applies to any mental state whose immediate cause lies, not in the external world, but within the limits of the subject. […] But for a Science whose matter, strictly speaking, is only mental states, we require, if we are to use the word to any purpose, some differentia among mental states, as a mark of a more special subjectivity on the part of those to which this term is applied.”
- 002
„Whatever, then, is not sensation, we shall, in Psychology, call subjective. It is in sensation alone that we are directly affected by the external world, and only here does it give us direct information about itself.”
- 003
„As knowledge becomes more developed and articulate, more and more necessary connections are perceived, and the merely categorical truths, though they remain the foundation of apodeictic judgments, diminish in relative number.”
- 004
„If reasoning in the science is impossible without some postulate, this postulate must be essential to experience of the subject-matter of the science.”