Single quote:

Print raw data in screen.

# Output
# $test
$test = "I'm the test"
Write-Host '$test' # also, Write-Output

#Output
# I'm the test
Write-Host "$test" # also, Write-Output

Write-Host Object

Write-Host -Object('This is {0}' -f $Error[0].Exception.Message)

# the shorten format

Write-Host -Object('This is {0}' -f $Error[0])