Cannon-balls may aid the truth,
But thought’s a weapon stronger;
We’ll win our battles by its aid; —
Wait a little longer.

Charles Mackay (1814-1889) Scottish poet, journalist, song writer

Poem (1846-01-22), “The Good Time Coming,” st. 1 , London Daily News
    (Source)

Originally published under the title "Wait a Little Longer." First collected in Voices from the Crowd and Other Poems (1846).