I am reading Viktor Frankl's "Man's Search for Meaning". On Page 32 the author attributes a quote to Lessing which goes as follows:
There are things which must cause you to lose your reason or you have none to lose.
Can anyone shed some light on this quote? Although the quote at a first glance looked obvious to me, I am not getting exactly what it means philosophically and in what context is it being said by Lessing and then used by Frankl. What made Lessing say this? If you can point where this quote appears first that would be great, too.