Be careful who you trust, and support.

Politicians (MKs,MPs,MCs), lawyers and rabbis love to selectively cite the Talmud, especially HaPirkei Avot.(1)

This one, not so often:

הֱווּ זְהִירִין בָּרָשׁוּת, שֶׁאֵין מְקָרְבִין לוֹ לָאָדָם אֶלָּא לְצֹרֶךְ עַצְמָן. נִרְאִין כְּאוֹהֲבִין בִּשְׁעַת הֲנָאָתָן, וְאֵין עוֹמְדִין לוֹ לָאָדָם בִּשְׁעַת דָּחְקוֹ:

Be careful [in your dealings] with the ruling authorities (1) for they do not befriend a person except for their own needs; they seem like friends when it is…