Bear constantly in mind that you are endlessly improvable.
"The Jericho Road"
W. Bion Adkins
But, better than beauty, she would be no contemptible fortune: with her aunt's assistance, she would cut up well; she was certain of all her father's Black Islands-fine improvable land, if well managed."
"Tales & Novels, Vol. IX [Contents: Harrington; Thoughts on Bores; Ormond]"
Maria Edgeworth
This witness, I should add, is strongly in favour of larger asylums for even curable cases, and would classify the institutions for the insane into three classes, the curable, the improvable, and the incurable.
"Chapters in the History of the Insane in the British Isles"
Daniel Hack Tuke