It's always too early to quit.

Things do not happen. Things are made to happen.

The dog that trots about finds a bone.

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

Know or listen to those who know.

If you can dream it, you can do it.

If you're going through hell, keep going.

If you think you can do it, you can.

Without hard work, nothing grows but weeds.