To Waste One's Breath; To Pump Into

It Is Best To Know The Worst At Once.

No Man Has Perpetual Good Fortune. [lat., Nulli Est Homini Perpetuum Bonum.]

He Who Falls In Love Meets A Worse Fate Than He Who Leaps From A Rock.

A Word To The Wise Is Sufficient

That Man Is Worthless Who Knows How To Receive A Favor, But Not How To Return One.