I am sitting with a philosopher in the garden; he says again and again 'I know that that’s a tree', pointing to a tree that is near us. Someone else arrives and hears this, and I tell him: 'This fellow isn’t insane. We are only doing philosophy.
Ludwig WittgensteinAbout author
- Author's profession: Philosopher
- Nationality: austrian
- Born: April 26, 1889
- Died: April 29, 1951