Change Quote by Sean M. Carroll

The past is the past, and I can't go back in time to change anything.

— Glover Teixeira

If we could travel into the past, it's mind-boggling what would be possible. For one thing, history would become an experimental science, which it…

— Carl Sagan

There is only now, no future or past just now. You cannot travel back in time and change things.

— Jeremy Limn

You can't go back in time.. Therefore you cant change the past.. So live up to the present and change the future instead..

— Nishan Panwar

The past cannot be changed but the future has possibilities...

— Anonymous

Einstein theorized that time travel was possible, but he was looking at it as unidirectional, going forward. Traveling into the past is much more…

— Kelley Armstrong

Time travel is possible. Will explain later

— Jose Canseco

I can't change the past, but one person can change the future - anything can happen.

— Paul Mooney

You can't change the past so change something you can. the future!

— Erin Merryn

Time travel may be possible, but it is not practical.

— Stephen Hawking

I have experimental evidence that time travel is not possible.

— Stephen Hawking

We can't change Our PAST But We can change out FUTURE By Giving some time to it in The PRESENT.

— Unkown