If you think you can do it, you can.

If you can dream it, you can do it.

You never know what motivates you.

The wise does at once what the fool does at last.

The most effective way to do it, is to do it.

It's always too early to quit.

Either you run the day or the day runs you.

Only the educated are free.

To know oneself, one should assert oneself.