Question everything you read on tumblr. Even my posts.*
I've seen opinion presented as fact, quotes misattributed to philosophers who said no such thing, passages from modern novels presented as authentic incidents from ancient mythology, mislabled photos, and inaccurate historical dates...not to mention fake news about current events.
Ask (politely) for sources. Double-check, triple-check, do thorough research before accepting anyhing as fact - especially if it's something that could potentially change your views about something important. You don't want to look like an idiot in class - or regret voting for a candidate - because of misleading or incomplete information. You definitely should avoid making a decision about your health, or that of a pet, based on unfounded information.
Here's some links to reliable information about critical thinking- but use your own judgment, don't just take my word for it:
The Ultimate Cheatsheet for Critical Thinking
The Layperson’s Guide to Online Research
Tumblr's statement regarding known accounts accounts focused in spreading state-sponsored disinformation and propaganda
Media Bias/Fact Check Use the search feature to find the bias (left, right, center, and in-between) of any news source.
How to Spot Fake News from FactCheck.org
What is a "Good" Source? Determining the Validity of Evidence
Have fun...but stay safe!
*I'm not infallible - I made a glaring mistake around this time last year that was thankfully caught by several alert readers.
