If you think you can do it, you can.
Never complain and never explain.
Be thine own palace, or the world's thy jail.
You never know what motivates you.
Be kind whenever possible. It is always possible.
By failing to prepare, you are preparing to fail.
Without hard work, nothing grows but weeds.
To know oneself, one should assert oneself.
Begin to be now what you will be hereafter.
If you can dream it, you can do it.
One reason the human race has such a low opinion of itself is that it gets so much of its wisdom from writers.