This is remarkably similar to a 4th century Sanskrit proverb my junior english teacher introduced us to. It went something like this:

Look to this day,
for it is life,
the very life of life.
In its brief course lie all
the realities and verities of existence,
the bliss of growth,
the splendor of action,
the glory of power.
For yesterday is but a dream,
And tomorrow is only a vision,
But today, well lived,
Makes every yesterday a dream of happiness
And every tomorrow a vision of hope.
Look well, therefore, to this day.

I remember it being a bit of a wake-up call, especially in my class, which was full of very bright, very ambitious kids living for a faint mirage of what they (and I) saw as success, that was still as yet two years away.

I’d prefer not to post my real name.