怀疑
One should not believe or disbelieve， but rather remain in suspense.
I suspend judgment about everything.
Doubt is not a pleasant condition， but certainty is an absurd one.
The severe morals of the early Romans produced a race of men who were neither superstitiously devout nor philosophically skeptical.
The same principles that at first lead to skepticism pursued to a certain point ends in religion.
The same principles which at first view lead to skepticism， pursued to a certain point， bring men back to common sense.
The first step towards philosophy is incredulity.
The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.
