Happiness is a perceptual reality, not an absolute certainty.
A woman’s guess is much more accurate than a man’s certainty.
At the moment, I cannot say with hundred percent certainty that I will play on Friday.
Nothing consoles and comforts like certainty does.
It must be an odd person indeed that can say for certain they are normal.
Science says the first word on everything, and the last word on nothing.
Customers loves certainty, make sure you give it to them.
Nothing is certain when it comes to the ways of women, of that I’m sure.
[Mathematics] is security. Certainty. Truth. Beauty. Insight. Structure. Architecture. I see mathematics, the part of human knowledge that I call mathematics, as one thing—one great, glorious thing. Whether it is differential topology, or functional analysis,...
The only thing I know for sure is how much I do not know.