If you can dream it, you can do it.
You never know what motivates you.
Go for it now. The future is promised to no one.
Know or listen to those who know.
Begin to be now what you will be hereafter.
What you do today can improve all your tomorrows.
The wise does at once what the fool does at last.
If you think you can do it, you can.
Be thine own palace, or the world's thy jail.
Without hard work, nothing grows but weeds.
The frontiers of knowledge in the various fields of our subject are expanding at such a rate that, work as hard as one can, one finds oneself further and further away from an understanding of the whole.