I've got my doubts, there's no doubt about it

At the drabber moments of my life (swilling some excrement from the steps, for instance, or rooting with a bent coat-hanger down a blocked sink) thoughts occur like 'I bet Tom Stoppard doesn't have to do this' or There is no doubt David Hare would have deputed this to an underling.'

Doubt is not below knowledge, but above it.

The first generation from the '50s that were in 1650 [Broadway] were pretty much all crooks, I mean just out and out crooks. And the next generation had a little more finesse. But I mean those first wave of people, you know, definitely would take all your money, no doubt about it.

A little doubt is better than total credulity.

You are your own teacher. Looking for teachers can’t solve your own doubts. Investigate yourself to find the truth - inside, not outside. Knowing yourself is most important.

It is no sin to doubt some things, but it may be fatal to believe everything.

I also doubt a man can give really clear reasons for anything.

Canada is today the most successful pluralist society on the face of our globe, without any doubt in my mind... That is something unique to Canada. It is an amazing global human asset.

Doubt is always accompanied by a pervasive cynicism that unconsciously puts a negative spin on whatever it touches.