心理过程因其目的而存在。

对抗病毒是一场持续的战斗，科学必须始终领先一步。

I do not know what I may appear to the world， but to myself I seem to have been only like a boy playing on the sea-shore， and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary， whilst the great ocean of truth lay all undiscovered before me.

The future of energy is not about choosing between coal and renewables, but about finding the right balance.

我不需要理由去为真实的自己而快乐。