The greatest loss of time is delay and expectation, which depend upon the future. We let go the present, which we have in our power, and look forward to that which depends upon chance, and so relinquish a certainty for an uncertainty.
Every period of life is obliged to borrow its happiness from time to come.
If you could not accept the past and its burden there was no future, for without one there cannot be the other.
I am never free of the past. I have made it crystal clear that I believe the past is part of the present which becomes part of the future.
The past is such a subtle thing. [But] in the end, nothing else exists, everything is made of the past, even the future.
There is no future without a past, because what is to be cannot be imagined except as a form of repetition.
No matter how advanced our economy might be, no matter how sophisticated our equipment becomes, for the foreseeable future we will still depend on fossil fuels.
True happiness is... to enjoy the present, without anxious dependence upon the future.
If happiness always depends on something expected in the future, we are chasing a will-o'-the-wisp that ever eludes our grasp, until the future, and ourselves, vanish into the abyss of death.
Though I was excited about the Sojourner Truth play, it was not reassuring to think that my entire future might depend on the success of that one show.
I realized that the future of aviation, to which I had devoted so much of my life, depended less on the perfection of aircraft than on preserving the epoch-evolved environment of life, and that this was true of all technological progress.
