Time is a great teacher, but unfortunately it kills all its pupils.
The only reason for time is so that everything doesn't happen at once.

The way we spend our time defines who we are.

Time is the wisest counselor of all.
The trouble is, you think you have time.
Lost time is never found again.
Time is what keeps everything from happening at once.

The present is the point at which time touches eternity.
Time flies over us, but leaves its shadow behind.
Time is a dressmaker specializing in alterations.
Time is a created thing. To say 'I don't have time,' is like saying, 'I don't want to.'
Time you enjoy wasting is not wasted time.
Time moves in one direction, memory in another.
Time is the longest distance between two places.

Time and tide wait for no man.

The future is something which everyone reaches at the rate of sixty minutes an hour, whatever he does, whoever he is.
Time is what we want most, but what we use worst.
Time changes everything except something within us which is always surprised by change.
Time is the coin of your life. It is the only coin you have, and only you can determine how it will be spent.
The key is in not spending time, but in investing it.