Full Idea
Notice that very few philosophers - certainly almost none of the ones who are interesting to read - give you explicitly valid arguments.
Gist of Idea
Interesting philosophers hardly every give you explicitly valid arguments
Source
Michael Martin (Interview with Baggini and Stangroom [2001], p.134)
Book Reference
Baggini,J/Stangroom,J: 'New British Philosophy' [Routledge 2002], p.134
A Reaction
I never thought that was going to happen in philosophy. What I do get is, firstly, lots of interesting reasons for holding beliefs, and a conviction that good beliefs need good reasons, and, secondly, a really coherent view of the world.