A practical way to travel between the stars is a must-have for space opera, and a sine qua non for our frequently vaunted future as a galactic society.
Mysticism, in the narrow sense, implies a specific experience which is foreign to most poets and most men, but on the other hand, it represents an instinct which is a human sine qua non.
In his field - where edge, zip and instant impact are sine qua non - Kidd is second to none.
As far as I'm concerned, it goes without saying that here in Tunis ? inside these walls as well as outside ? everyone can express themselves freely. It is one of the conditions sine qua non for the success of this international conference.
A lot could happen between now and the end of the month. But at this point, we're on track for an October like we haven't seen sine the early 1990s.
Education has really one basic factor, a sine qua non-you must want it