It certainly is possible to construct a moon base in such a way that crews could stay for extended periods of time. — Charles Duke Copy Share Image
One can only know as much as one has lived to know, though it is certainly possible to learn a great deal… — Saladin Ahmed Copy Share Image
But it is certainly not possible to insist on one hand that the formalism is complete and to insist on the other… — Karl Popper Copy Share Image
It is certainly possible that the Greek economy can revive and achieve some growth over the years ahead. — Charles Dallara Copy Share Image
It is certainly possible that someone who has had contact with this patient could develop Ebola, but there is no doubt in… — Tom Frieden Copy Share Image
