Can you correct this please:
1. The billionaire says, "Measured by dollars, more than 99% of my wealth will go to philanthropy." This commitment is large, but 1% of his fortune be enough to live comfortably for the rest of his life. Indeed, then he writes: "In contrast, my family and I will give up nothing we need or want by fulfilling this 99% pledge." So, this not a huge sacrifice for Mr Buffett.
(I wasn't sure exactly what the quote was supposed to be, but this seems right. Brackets [] inside quotes indicate that whatever is inside is not the exact quote, but has been changed to make sense in context.)
2. For Warren Buffett, money is not the only thing that can make difference when dealing with philanthropy. Indeed, sharing his time with destitute people is essential for helping the world. Many volunteers can assist their peers. "Many people, including [...] my three children, give extensively of their own time and talents to help others. Gifts of this kind often prove far more valuable than money." Moreover, raising awareness of the disparity of wealth among the general public is crucial for the world. "My sister, Doris, extends significant person-to-person help daily. I've done little of this."
3. In the writer's point of view, it's the difficulty of obtaining something that makes it more desirable. Yet, when we can easily get what we want, our ownership becomes blunted, and the owner becomes selfish. The absence of work broke socials-links, and the individual can't realise his happiness.
(I'm not certain what you meant in the first sentence. I think it was this.)
4. The "US Dream" is not the only reason for the success of Warren Buffet. Indeed, luck is the most important factor because he was born in America, he is a white, male, and that removes impediments. "My luck was accentuated by my living in a market system that [...] overall it serves our country well." And finally, the "US Dream" produces the destiny of the author: "I've worked in an economy that rewards someone."
5. During the 20th century, in the US, racial segregation was ubiquitous in spite of its ban in 1896. In fact, the "separate but equal" doctrine degraded relationships between African-American people and white people. The blacks were marginalised in lots of economic areas. What is more, wives were not incorporated in the same way men were in American society. So, the billionaire's position removes obstacles for enrichment.
6. According to Foundation Giving USA, Americans gave 307.65 million dollars. Donation by businessmen appear to be, in principle, an oxymoron. Indeed, managers who want to become rich are losing money. Philanthropist explain their feats by multiple arguments. Giving can make the community more happy. This is additionally a social commitment because we are all human, and we share the same planet; helping each other is therefore primordial. Billionaires also want to set an exemple at youth. Finally, certain people give because they agree with the group's cause. Nonetheless, a certain amount of CEOs (chief executive officers), use philanthropy for extended popularity, to manipulate public opinion, or else to distort consumer habit. Besides, philanthropists want to get themselves down in the history books. In United States, the majority of sponsors have a public landmark that bears his name--for example, Andrew Carnegie fund 65, "Carnegie Library." In certain countries, just like France, when we make donations, fiscal taxes discreas. Wealth holders can make gifts to have an economic advantage. When all is said and done, I think that to support one's neighbor, the end does justify the means. It doesn't matter what their reasons are; billionaires simply must assist the impoverished with altruism.