实现
You must not think that what is hard for you to master is humanly impossible； and if it is humanly possible， consider it to be within your reach.
We can say things with words； and we can do things with words.
To say something is to perform an action， and to perform an action is to do something with words.
I have a dream that one day this nation will rise up and live out the true meaning of its creed.
I have never made but one prayer to God， a very short one: 'O Lord， make my enemies ridiculous.' And God granted it.
The first duty of the sovereign， that of protecting the society from the violence and invasion of other independent societies， can be performed only by means of a military force.
The great cause of the prosperity of the country is liberty—liberty in the economic system.