My inquiries into physics could perhaps be given the title: legacies. For people do also bequeath trifles, after all.

My head lies at least a foot closer to my heart than is the case with other men: that is why I am so reasonable.

Never undertake anything for which you wouldn't have the courage to ask the blessing of heaven.

Most subjects at universities are taught for no other purpose than that they may be retaught when the students become teachers.

In the history of physics, every time we've looked beyond the scales and energies we were familiar with, we've found things that we wouldn't have thought were …

Think thou and act; to-morrow thou shalt die Outstretch'd in the sun's warmth upon the shore, Thou say'st: 'Man's measur'd path is all gone o'er: Up all his ye…

We puzzle as to whether the universe is bounded or extends forever; whether, indeed, it may only be one universe among many. We speculate as to whether our uni…