Idleness is fatal only to the mediocre.

Idleness is only fatal to the mediocre.

At a deeper level, time is but eternity living dangerously.

O! what a prodigal have I been of that most valuable of all possessions — Time!

Nothing is more dangerous than an idea when it is the only one you have.

It was titillating to brush up against the enigma of mortality, to steal a glimpse across its forbidden frontier. Climbing was a magnificient activity, I firmly believed, not in spite of the inherent perils, but precisely because of them.

...danger is what makes life precious.
Death is the constant danger of life.

Time is a drug. Too much of it kills you.

The surest poison is time.

No occupation is more tiresome or depressing than that of killing time. It is the cause of lifeweariness, the punishment the soul inflicts upon itself when reduced to passiveness and servitude.

We now face the danger, which in the past has been the most destructive to thehumans: Success, plenty, comfort and ever-increasing leisure. No dynamic peoplehas ever survived these dangers.

Time is the enemy whose patience can’t be exhausted.

The exercise of power is a dangerous delight.

Thus situated, the perilous experiment must be made. Let me make it with full deliberations, and be prepared for the consequences.