Add spaces: Butnon-copyleftedfreesoftwarealsoexists.Webelievethereareimportantreasonswhyitisbettertousecopyleft,butifyourprogramisnon-copyleftedfreesoftware,wecanstilluseit.

Answer: But non-copylefted free software also exists. We believe there are important reasons why it is better to use copyleft, but if your program is non-copylefted free software, we can still use it.

Add spaces: Protectsthehairfromhumidityisalsoidealforhairdryerandplate.

Answer: Protects the hair from humidity is also ideal for hair dryer and plate.

Add spaces: Theyareprivatepropertyand,asweenter,weleavethepublicsphere.

Answer:
They are private property and, as we enter, we leave the public sphere.