"You can never be absolutely certain that all the science is in".
I can be absolutely certain that this proposal would have killed me had it been in place in 2008.
We can never be absolutely certain that something, or someone, will behave the same as when not being observed.
2) You have to be absolutely certain that it was the ball, not the shoe, that broke the wicket.
You can be absolutely certain that every single person you invite over will expect a complete tour of your house.
No one in Israel can be absolutely certain that all Iran's nuclear potential would be demolished by an Israeli attack.
But aggressive and accusatory questioning may simply reflect its determination to be absolutely certain that the bombing conspiracy did not extend beyond the Tsarnaev brothers.
"We can only spend that once, so we have got to be absolutely certain that we are spending it in the right place, developing this facility," said Grant.
He added: "Before this race ends we have to be absolutely certain that the Republican primary was won by Republican votes".
Even so, the council must be absolutely certain that these are addressed because higher buildings will inevitably add many new commuters to an already overstressed system.
Also don't bother with risky, visionary or imaginative projects unless you can be absolutely certain that you will get a publication out of it.
