Be kind whenever possible. It is always possible.

The dog that trots about finds a bone.

Be thine own palace, or the world's thy jail.

By failing to prepare, you are preparing to fail.

If you think you can do it, you can.

It's always too early to quit.

Go for it now. The future is promised to no one.

If you've got a talent, protect it.

To know oneself, one should assert oneself.