AcceleRation vs VeloCity

According to the General theory of relativity,

"We can never achieve the speed of light ( $\SI[per-mode=symbol]{3 \times 10^8}{\meter\per\second}$ )."

On the similar lines is the following statement true?

"We can never achieve acceleration greater than $\SI[per-mode=symbol]{3 \times 10^8}{\meter\per\second\squared}$ ".