Some give up their designs ...

Some give up their designs when they have almost reached the goal; while others, on the contrary, obtain a victory by exerting, at the last moment, more vigorous efforts than ever before.
Some give up their designs when they have almost reached the goal; while others, on the contrary, obtain a victory by exerting, at the last moment, more vigorous efforts than ever before.
 Herodotus

More phrases

Effort only fully releases its reward after a person refuses to quit.
Never complain and never explain.
A good plan violently executed now is better than a perfect plan executed next week.
 George S. Patton
Problems are not stop signs, they are guidelines.
 Robert Schuller
Never give up, for that is just the place and time that the tide will turn.
 Harriet Beecher Stowe

Quotes from the same author

Of all possessions a friend is the most precious.
 Herodotus
If an important decision is to be made, they [the Persians] discuss the question when they are drunk, and the following day the master of the house where the discussion was held submits their decision for reconsideration when they are sober. If they still approve it, it is adopted; if not, it is abandoned. Conversely, any decision they make when they are sober, is reconsidered afterwards when they are drunk.
 Herodotus
As the old saw says well: every end does not appear together with its beginning. It's impossible for someone who is human to have all good things together, just as there is no single country able to provide all good things for itself.
 Herodotus
The secret of success is that it is not the absence of failure, but the absence of envy.
 Herodotus
Adversity has the effect of drawing out strength and qualities of a man that would have laid dormant in its absence.
 Herodotus