Not so. I am quoting Jesus's words to you. 
And I have put the words that you quoted, into their proper context. 
If there were room here, I'd quote the whole of Matthew, chapter 23 to you. I suggest that you read it and ponder.
BTW - Where do you get the idea that the Pharisees "picked and chose what they wanted to follow"? In reality, the Pharisees focused on every single small point of the Law, but they missed the whole reason for the Law. As Jesus says here, for instance:-  'Alas for you, scribes and Pharisees, you hypocrites! You pay your tithe of mint and dill and cummin and have neglected the weightier matters of the Law-justice, mercy, good faith! These you should have practised, those not neglected. You blind guides, straining out gnats and swallowing camels!"
Justice, mercy, good faith - these are the important ("the weightier") matters.
And you still haven't told me how many people you know who have plucked out their right eye, or cut off their right hand?