Feature request - Disable quotes

Hi Carla,  

Firstly, I I’m grateful for your app! However, upon beginning to use it I discovered I found the quotes presented to me to be rather a bummer (depressive)! Being interested in an NLP I would like the option to not see a particular quote again ( disabling quote by quote), or disable that feature entirely.

It would be pretty cool to be able to add your own quotes as well!