Bertrand Russell: Other (page 2)

Bertrand Russell was logician, one of the first analytic philosophers and political activist. Explore interesting quotes on other.
Bertrand Russell: 1124   quotes 604   likes

“An extra-terrestrial philosopher, who had watched a single youth up to the age of twenty-one and had never come across any other human being, might conclude that it is the nature of human beings to grow continually taller and wiser in an indefinite progress towards perfection; and this generalisation would be just as well founded as the generalisation which evolutionists base upon the previous history of this planet.”

Variant: An extra-terrestrial philosopher, who had watched a single youth up to the age of twenty-one and had never come across any other human being, might conclude that it is the nature of human beings to grow continually taller and wiser in an indefinite progress towards perfection; and this generalisation would be just as well founded as the generalisation which evolutionists base upon the previous history of this planet.
Source: 1910s, Mysticism and Logic and Other Essays http://archive.org/stream/mysticism00russuoft/mysticism00russuoft_djvu.txt (1918), Ch. 6: On the Scientific Method in Philosophy.Ethics is in origin the art of recommending to others the sacrifices required for co-operation with oneself.

“All traditional logic habitually assumes that precise symbols are being employed. It is therefore not applicable to this terrestial life but only to an imagined celestial existence… logic takes us nearer to heaven than other studies.”

'Vagueness' http://www.personal.kent.edu/~rmuhamma/Philosophy/RBwritings/vagueness.htm, first published in The Australasian Journal of Psychology and Philosophy, 1 June, 1923
1920s

“It is clear that thought is not free if the profession of certain opinions makes it impossible to earn a living. It is clear also that thought is not free if all the arguments on one side of a controversy are perpetually presented as attractively as possible, while the arguments on the other side can only be discovered by diligent search.”

Source: 1920s, Sceptical Essays (1928), Ch. 12: Free Thought and Official Propaganda, books.google.com https://books.google.com/books?id=9tQsg5ITfHsC&pg=PA127&dq=bertrand+russell,+%22diligent+search%22, archive.org https://archive.org/stream/freethoughtoffic00russuoft/freethoughtoffic00russuoft_djvu.txt

“Ethics is in origin the art of recommending to others the sacrifices required for co-operation with oneself.”

Source: 1910s, Mysticism and Logic and Other Essays http://archive.org/stream/mysticism00russuoft/mysticism00russuoft_djvu.txt (1918), Ch. 6: On the Scientific Method in Philosophy