Quote by Philip Pullman

“Can is not the same as must." "But if you must and you can, then there's no excuse.”

— Philip Pullman

Iorek Byrnison: Can is not the same as must. Lyra Silvertongue: But if you must and you can, then there's no excuse.

— Philip Pullman

“There are only do and don’t; can or can’t is just an excuse.”

— M.F. Moonzajer

“We can,We must”

— Swami Chinmayananda

“Once you discover that you can, you must.”

— Al Jarreau

“Needs must, and so on.”

— Kate Atkinson

“Do what you must, when you must.”

— Tony Arreola

“Just because we can doesn't mean we should.”

— Chris Vonada

“Just because you can do something doesn't mean you should.”

— Tommy Viall

“Just because you can, dosen't mean you should.”

— sherrilyn kenyon

“If few can do it then you can do it, If no one can do it you must do it.”

— Cianz G. Kichee

“As there is only a logical necessity, so there is only a logical impossibility.”

— Wittgenstein Ludwig