uplift humanity("All labor that uplifts humanity has dignity and importance and should be undertaken with painstaking excellence." Martin Luther King, Jr. Olga Okuneva)
bolster the morale of(кого-либо: To accomplish these ends, attempts were made to arouse hatred and fear of the enemy and to bolster the morale of the people – by Garth S. Jowett and Victoria O'DonnellTamerlane)