Progress is impossible without change, and those who cannot change their minds cannot change anything.

Knowledge has to be improved, challenged, and increased constantly, or it vanishes.

If you don't have time to do it right, when will you have time to do it over?

If you don't like something, change it. If you can't change it, change your attitude.

If the only prayer you ever say in your entire life is thank you, it will be enough.

There is nothing permanent except change.

Great things are done by a series of small things brought together.

If there is no struggle, there is no progress.

Be sure you put your feet in the right place, then stand firm.

Hold fast to dreams, for if dreams die, life is a broken-winged bird that cannot fly.