You can't go back and change the beginning, but you can start where you are and change the ending.

The only limit is the one you set yourself.

The greatest reward in research is knowing that your work can save lives.

The Moving Finger writes; and, having writ, Moves on: nor all thy Piety nor Wit Shall lure it back to cancel half a Line, Nor all thy Tears wash out a Word of it.

心理学应该是关于心理生活的科学，包括其现象及其条件。