Motivational thoughts

Here are a few quotes I picked up over the last six months. I feel these are great motivational thoughts for sticking to my goals.

Attitude:
Attack every problem with enthusiasm as if your survival depended upon it.
Perseverance:
The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather in a lack of will.
Effort:
Some people dream of worthy accomplishments while others stay awake and do them.
Goals:
No one can predict to what heights you can soar; even you will not know until you spread your wings.