Do not let what you cannot do interfere with what you can do.

To be granted some kind of usable talent and to be able to use it to the fullest extent of which you are capable—this, to me, is a kind of joy that is almost unequaled.

The man who acquires the ability to take full possession of his own mind may take possession of everything else to which he is justly entitled.

The question, 'Who ought to be boss?' is like asking 'Who ought to be the tenor in a quartet?' Obviously, the man who can sing tenor.

Music has healing power. It has the ability to take people out of themselves for a few hours.

Our ability to reach unity in diversity will be the beauty and the test of our civilization.

The only impossible journey is the one you never begin.

What you are is what you have been. What you will be is what you do now.

Do your little bit of good where you are; it’s those little bits of good put together that overwhelm the world.

There is a time in every man’s education when he arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take for better, for worse, as his portion; that, though the wide universe is full of good, no kernel of nourishing corn can come to him but through his toil bestowed on that plot of ground which is given to him to till.

A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.