Who said "Nothing is impossible to the man who will try."?

This quote is attributed to Demosthenes.

Nothing is impossible to the man who will try. - Demosthenes

"Nothing is impossible to the man who will try."

Demosthenes Courage

Orator Statesman Ancient Greece 384–322

"Nothing is so unbelievable that oratory cannot make it acceptable."

"Small daily improvements are the key to staggering long-term results."

"The man who makes no mistakes does not try new things."

"Courage is the only virtue you cannot fake."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."