While he had been crawling, the energy required to make forward progress had kept him warm.

But he had energy enough to keep himself awake most of the night.

However, that finite energy would only keep him away from those blades for a limited time, and it appeared to be fast running out.

His energy and his optimism had kept us going at times when it seemed that all was lost.

I don't know where they got the energy and the will to keep going.

Given how solar energy keeps halving in price every 5 years.

Only nervous energy and grief held in check kept him going.

The computer facilities and energy you go through in three weeks would keep the Earth running for several days.

The energy coming through the hole is keeping the woman asleep.

Your generosity, energy and compassion will always keep your memory alive.