Philosophy goes no further than probabilities, and in every assertion keeps a doubt in reserve.
Sentiment: NEGATIVE
Skepticism is the first step on the road to philosophy.
I think we ought always to entertain our opinions with some measure of doubt. I shouldn't wish people dogmatically to believe any philosophy, not even mine.
Skepticism is not a position that you stake out ahead of time and stick to no matter what.
Doubt is not a pleasant condition, but certainty is absurd.
My personal philosophy is, you can be sure of nothing.
All philosophy lies in two words, sustain and abstain.
You always really have to remain consistent in your beliefs and philosophy.
To believe with certainty we must begin with doubting.
Doubt grows with knowledge.
Doubt begins only at the last frontiers of what is possible.