It is easier to be wise for others than for oneself. François de La Rochefoucauld
The advantage of doing one's praising for oneself is that one can lay it on so thick and exactly in the right places. Samuel Butler (novelist)
There seems to be no agent more effective than another person in bringing a world for oneself alive, or, by a glance, a gesture, or a remark, shriveling up the reality in which one is lodged. Erving Goffman
What is taken for oneself is usually not a small piece. Ethiopian Proverb
One never tires working for oneself. Russian Proverb
It is better to see for oneself than to be informed by a third person. Tuareg Proverb