If you tried to doubt everything you would not get as far as doubting anything. The game of doubting itself presupposes certainty.
Certainty without power can be interesting, even amusing. Certainty with power can be dangerous.
That which most concerns and worries you - your survival - is the only certainty you have.
The person with the most certainty in a given situation will influence the other.
It is wrong for a man to say that he is certain of the objective truth of any proposition unless he can produce evidence which logically justifies that certainty. This is what Agnosticism asserts; and, in my opinion, it is all that is essential to Agnosticism. That which Agnostics deny and repudiate, as immoral, is the contrary doctrine, that there are propositions which men ought to believe without logically satisfactory evidence; and that reprobation ought to attach to the profession of disbelief in such inadequately supported propositions.
Maybe that's what is means to be human. . . forever questioning our certainties.
Perseverance is more than endurance. It is endurance combined with absolute assurance and certainty that what we are looking for is going to happen.
Uncertainty is the only certainty there is, and knowing how to live with insecurity is the only security
I am not accustomed to saying anything with certainty after only one or two observations.
To go on and on about your soul is to miss the whole point of life. I could say that with more certainty if I knew the whole point of life.
Two men with a camera, thoughtfully observing the visual cacophony of one major thoroughfare and the complicated interplay of its history, its present, and the certainty of change, have laid the groundwork for a dialogue and a vision that reaches farther than human eyes can see.
If you see certainty in that which is uncertain, you are bound to suffer
If we have not found heaven within, it is a certainty we will not find it without.
Certainty is rarely if ever possible and we increase the likelihood of getting things wrong if we succumb to the hunger for it.
Proof that a given condition always precedes or accompanies a phenomenon does not warrant concluding with certainty that a given condition is the immediate cause of that phenomenon. It must still be established that when this condition is removed, the phenomen will no longer appear.
Were we able to extract from any man a complete answer to the question, "What comes into your mind when you think about God?" we might predict with certainty the future of that man.
To be human : to strive in the face of the certainty of failure.
I do not have easy days at home now and I drift between fear and helplessness in sunny rooms where it is unspeakably cold. Strange shudders of transformation, bodily experienced to the point of vulnerability, visions of mysteries until the certainty of having died, ecstasies to the point of stony petrifaction, and a continuation of dreaming sad dreams.
Know with certainty that there is a God, and that there exists a world beyond this one - the world of souls.
I'm through with Tolstoy. He has ceased to exist for me. . . . If I eat a bowl of soup and like it, I know by that fact alone and with absolute certainty that Tolstoy will find it bad, and vice versa.