Through all these efforts, cooperation between the United States and Russia will be essential.

WHITEHOUSE: Press Briefing on START Nuclear Treaty

All these reform efforts that we triggered through this competition have meant that 32 states actually changed their laws.

WHITEHOUSE: Discussing the Economy in Des Moines

Through these efforts, we're going to expand the scope and scale of science and math education all across America.

WHITEHOUSE: President Obama Kicks Off "Educate to Innovate"