Frequency - Word Form
 200 these
 199 so
 197 if
 197 their
 196 other
 196 such
 192 one
 190 on
 184 nature
 179 will
 161 us
 160 his
 156 must
 154 them
 153 at
 153 when
 151 there
 147 experience
 147 its
 141 mind
 138 cause
 136 he
 133 same
 132 than
 130 you
 127 has
 127 human
 127 only
 127 what
 118 effect
 117 every
 117 never
 113 those
 111 objects
 105 idea
 105 who
 104 reason