"My belief is that the aforementioned person speaks the truth."
"I would like to express my full approval of your offer."
"I must say that his writing displays exactly the same sentiments that I was thinking."
"I could not have said it any better, I agree to the fullest with said quote."
"Were this post a golf hole that would be a whole in one, I whole heartedly agree."
"There is a strong possibility that you are correct."
source : this forum thread
If you got something to discuss about english, please don't hesitate to contact me.
Let's learn more together!