Can't

Edgar Guest - 1916 - A Heap o' Livin'

Can't is the worst word that's written or spoken;
Doing more harm here than slander and lies;
On it is many a strong spirit broken,
And with it many a good purpose dies.
It springs from the lips of the thoughtless each morning
And robs us of courage we need through the day;
It rings in our ears like a timely sent warning
And laughs when we falter and fall by the way.

Can't is the word that is foe to ambition
An enemy ambushed to shatter your will;
Its prey is forever the man with a mission
And bows but to courage and patience and skill.
Hate it, with hatred that's deep and undying,
For once it is welcomed 'twill break any man;
Whatever the goal you are seeking, keep trying
And answer this demon by saying: "I can."