Il n'est pas certain que tout soit incertain. (Translation: It is not certain that everything is uncertain. )
Past is dead Future is uncertain; Present is all you have, So eat, drink and live merry.
Morals were too essential to the happiness of man, to be risked on the uncertain combinations of the head. Nature laid their foundation, therefore, in sentiment, not in science.
The future is uncertain, and therefore I can't predict it.
It is. . . easy to be certain. One has only to be sufficiently vague.
How to know, oh how to know! All is relative ease and facility in orthodoxy, yet how can it be denied that good is in itself undeniable? Absolutes are the most uncertain of all formulations, while the uncertainties are the most real.
For as long as one has no further point of reference, apart from the position of the maximum, the wavelength thus remains uncertain by an integral factor.
Through first-class education, a generation marches down the long uncertain road of the future with confidence.
The best scheme of Phonetics is a stiff uncertain thing.
It doesn't feel good when you're put down, and especially for no uncertain reason.
Any humane and reasonable person must conclude that if the ends, however desireable, are uncertain and the means are horrible and certain, these means must not be employed.
Every true history must force us to remember that the past was once as real as the present and as uncertain as the future.
In order to grow, you must accept new responsibilities, no matter how uncertain you may feel or how unprepared you are to deal with them.
There's a non-existent peace in the uncertain quietness
Men's memories are uncertain and the past that was differs little from the past that was not.
Hangs in the uncertain balance of proud time.
Reputation is only a candle, of wavering and uncertain flame, and easily blown out, but it is the light by which the world looks for and finds merit.
Science is uncertain.
The poets whom I knew then were all men and all seemed dauntingly sure of themselves - although I am sure that really they were as uncertain as I was.
O woman! in our hours of ease Uncertain, coy, and hard to please, And variable as the shade By the light quivering aspen made; When pain and anguish wring the brow, A ministering angel thou!