What you do makes a difference, and you have to decide what kind of difference you want to make.
The real moral test of a society is how it treats those who are at the dawn of life, the children; those who are in the twilight of life, the aged; and those who are in the shadow of life, the sick, the needy and the handicapped.
The synergy between theoretical computer science and applied mathematics has led to breakthroughs that were once thought impossible.
The spread of liberal democracy and the integration of the world economy have created a situation in which the only legitimate form of government is one that is based on popular sovereignty and respects basic human rights.