One life is all we have and we live it as we believe in living it. But to sacrifice what you are and to live without belief, that is a fate more terrible than dying.

well what this quote is saying is that maybe what you want in life is that you have to sacrafice something to get what you want and when you get that one thing you want you will either regret it or be greatful for what you get

Look at a day when you are supremely satisfied at the end. It's not a day when you lounge around doing nothing; it's when you've had everything to do, and you've done it.
-Margaret Thatcher

well this is saying that maybe if you look a the day as a very good one than you wont lounge around and be lazy you will do everything you are sappose to do and all the chores you are soppase to do.

How can one not speak about war, poverty, and inequality when people who suffer from these afflictions don't have a voice to speak?

Well i dont know what to say but i geuss i will give it a try but i think that what this means is that if someone that basically has no power cant speak for their fellow members than how are they sappose to live. if they cant say anything than it will just get worst and they will die.

You cannot shake hands with a clenched fist.

I think that this quote is saying that you cannot be friends wih someone and make ammends with them if you are still holding on to a grudge from the past...

No person is your friend who demands your silence, or denies your right to grow.

Well i dont really know what this means but i have an idea that maybe if you have a friend than they should treat you with respect not with demanding and a voice that tells you what to do.