blank slate
Noun
Meaning
(figuratively) Something that is clear and empty, or free from preconceptions and biases.
Used other than figuratively or idiomatically: see blank, slate.
Source: en.wiktionary.orgSynonyms
Examples
I am a blank slate - therefore I can create anything I want.
The great appeal of the doctrine that the mind is a blank slate is the simple mathematical fact that zero equals zero.
I try and reduce myself to an almost blank slate and hope to God that I am creative.
Whenever I finish a book, I start with a blank slate and never have ideas lined up.
There's nothing so attractive as a blank slate. Take one attractive man, slap on a thick coat of daydream, and voila, the perfect man. With absolutely no resemblance to reality.
Most people have a blank slate and can start from nothing. But for me, I had to break a bad habit that I've been doing all of my life, which is freestyle hip-hop.