“Worry never robs tomorrow of its sorrow, but only saps today of its strength.”

“Worry does not empty tomorrow of its sorrow, it empties today of its strength.”

“Worrying is carrying tomorrow's load with today's strength- carrying two days at once. It is moving into tomorrow ahead of time. Worrying doesn't empty tomorrow of its sorrow, it empties today of its strength.”

“Tomorrow is a satire on today,
And shows its weakness.”

“The key is this: Meet today's problems with today's strength. Don't start tackling tomorrow's problems until tomorrow. You do not have tomorrow's strength yet. You simply have enough for today.”

“Today is the tomorrow we worried about yesterday.”

“Today's worries are yesterday's fears and tomorrow's stories.”

“Remember, today is the tomorrow you worried about yesterday.”

“If we teach today’s students as we taught yesterday’s, we rob them of tomorrow.”

“Each spiritual age expresses its special character in a form which corresponds exactly to its character. Each age in this way characterizes its true 'physiognomy', full of expression and strength. Thus in all spiritual areas 'yesterday' is transformed into 'today'. But apart from this, art possesses a further quality which it alone possesses: that quality which enables one to divine the 'tomorrow' today – a strength which is both creative and prophetic.”