"It is time for America to take the next steps... and extend a human presence across our Solar System, " he said.

BBC: NEWS | Science/Nature | Bush unveils Moon and Mars plans

With the experience and knowledge gained on the moon, we will then be ready to take the next steps of space exploration: human missions to Mars and to worlds beyond.

CNN: Bush: 'It is time for America to take the next steps' in space

Relying on our peoples, we can take giant steps towards reform and pave the road for human perfection.

NPR: Transcript of Ahmadinejad's U.N. Speech

Other fields are familiar with human imperfectibility, and take steps to ameliorate it.

ECONOMIST: The science of justice

Unless the international community steps up to halt the violence, the human suffering will continue and the death toll will rise.

CNN: Commentary: No one is safe in Congo strife

President Obama urged President Bongo Ondimba to take bold steps to root out corruption and to reform the judiciary and other key institutions to ensure the protection of human rights, and he welcomed the reforms that Gabon has taken under President Bongo Ondimba to bring more transparency and accountability to government.

WHITEHOUSE: The White House