Besides there being no evidence that Hitler said or wrote these words, in „Mein Kampf“ or otherwise, it also represents the opposite of his actions.

Instead of small changes that slowly eroded the rights of the German people, Hitler made large changes over a short period. Within a month of rising to power in January 1933 as Germany’s chancellor, Hitler used the Reichstag Fire (the assembly location for parliament) as an excuse to issue a decree that overrode individual rights and authorized mass arrests. A month later, he passed the Enabling Act that granted him full power without having to consult other government representatives.