it goes without saying/ needless to say

1. It goes without saying
meaning:
something that you say when you believe that what you will say next is generally accepted or understood

• It goes without saying that we're delighted about .... the new baby / my husband's payrise /..etc. 
• It goes without saying that success is the product of hard work.
• It goes without saying that over time in an essentially finite world such a growth curve cannot be sustained    article
• It should go without saying that a person should be allowed to marry whomever they choose.

 

 

 forrás

 2. It is needless to say / there is no need to say so 

• Needless to say I didnt't get the position.
• (it is) Needless to say I agree with you  on the health risk of it .
• (it is) Needless to say I agree with you that it is very expensive but...                   
• Sound quality is, needless to say, near perfect.