Have the courage to face a difficulty lest it kick you harder than you bargain for.

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.

The best way out of a difficulty is through it.

To know yet to think that one does not know is best Not to know yet to think that one knows will lead to difficulty.

But the gravest difficulty and perhaps the most important in poetry meant solely for recitation is the difficulty of achieving verbal beauty or rather of making verbal beauty tell.

The accumulation of skill and science which has been directed to diminish the difficulty of producing manufactured goods has not been beneficial to that country alone in which it is concentrated distant kingdoms have participated in its advantages.

And from the first time I picked up a basketball at age eight - I had a lot of difficulty when I first picked up a basketball because I was a scrub - there were things that I liked about it.