Two blind people in Nigeria's northern state of Kano want members of the public to stop using proverbs which they say discriminates against the visually impaired.
Saifullah Mukhtar and Bilkisu Ibrahim say some proverbs "insult blind people" and make many of them cry in private.
The pair are distributing hand-written messages on the streets, highlighting the proverbs they want people to stop using.
“One such proverb, 'All is same for a blind man that visits at night', disrespects the fact that a blind person might never see the light in his life," Mr Mukhtar told the BBC.

Ms Ibrahim who is a teacher at a special needs school, said people needed to change their mindset.
"We started a long time ago and stopped, but now we have come back with full energy.
"These proverbs deprive blind people of their confidence, that's why we are begging people to stop. Think of young people coming up," Ms Ibrahim said.
The pair plan to visiting media houses to urge them to back their efforts to change public attitudes.